If you thrive off '90s nostalgia and picture-perfect cast reunions, then 2015 has been your year. Everything old was new again thanks to the many reunions, reboots and revivals that happened onscreen and off. We don't know what dark magic was behind this, but we'll take it.

Not only have some of our favorite TV and movie casts reunited over the last 12 months, but they also captured everything on social media. ? So, if you want to get your heart racing on nostalgia fuel, check out the 23 cast reunions and celebratory get-togethers that had us up outta our seats and screaming at the top of our lungs in 2015:

"Ugly Betty"

The cast of the quirky network comedy "Ugly Betty" reunited for America Ferrera's birthday party in April. A beaming Ferrera, who turned 31, was surrounded by her TV familia, Vanessa Williams, Tony Plana, Judith Light, Mark Indelicato and costume designer Patricia Field.

"Scrubs"

This calls for a celebratory EEAAAGLE! Zach Braff and Donald Faison are already the ultimate celeb BFFs, but seeing them reunite with former costar Christa Miller really made our hearts swell.

"Twilight"

We know it hasn't been very long since Edward and Bella lived happily ever after, but that doesn't mean we don't lose our sh-t when Cullens reunite IRL. Ashley Greene reunited with fellow onscreen vamp Kellan Lutz at a L.A. Lakers game at Staples Center in April, and our hearts couldn't take the cuteness. "Reunited with Kel at the Lakers game #lovethisone," she captioned the sweet pic. Ermahgerd.

"Bring It On"

They’re sexy, they’re cute, they’re popular to boot: the cast of "Bring It On" reunited for the ultimate photo shoot in the Entertainment Weekly reunion issue, and it was adorable. (Sadly, there were no spirt fingers.) Even after 15 years, Kirsten Dunst, Eliza Dushku, Gabrielle Union and Jesse Bradford are still the #1 squad in our hearts.

"One Tree Hill"

The River Court gang's all here! Lucas (Chad Michael Murray), Peyton (Hilarie Burton), Mouth (Lee Norris) and Skills (Antwon Tanner) reunited with their "Tree Hill" family in Wilmington, North Carolina in March. This is a huge deal for Leyton fans, seeing as Lucas and Peyton never properly said goodbye to the show in its final season. "Let's do this again y'all!!" Tyler Hilton, a.k.a. Chris Keller, wrote on Insta. "Best fans of all time. Best friends I could ask for. Been through a lot together! #OTHfam." See, Peyton? People don't always leave; sometimes they come back, too.

"Greek"

We reserve this emotional response for special occasions, but... YAASSS. Cast members from the ABC Family's amazing frat dramedy "Greek" reunited to celebrate Scott Michael Foster's 30th birthday, and of course, they partied the night away. We love you, bbs.

"That 70s Show"

While Mila Kunis and Ashton Kutcher’s marriage may be the ultimate "That 70s Show" reunion (Jackie and Kelso have a baby, guys), that doesn't mean we don't get excited when other members of the cast get together. For example, Kutcher, Danny Masterson (Hyde) and Wilmer Valderrama (Fez) recently reunited for a bro sesh, and we'd like to think the fellas spent some time around the Circle reminiscing about old times.

"Buffy The Vampire Slayer"

In case you were wondering, Willow and Buffy are still BFFs. The former costars not only hang out on the reg, but their children are also friends! "So this girl (#AlysonHannigan) and her husband (#AlexisDenisof) know how to throw a party," Sarah Michelle Gellar posted to Instagram. "I thought I was good with the crafts, till I went to this party #CraftMaster Thanks for having the #PrinzeFamily I've never seen a farm and pony rides in Santa Monica before #NowIveSeenItAll." SMG also had lunch with Danny Strong (aka Jonathan) in May. "I'm so proud of him," she wrote. "I knew you when, Danny."

"Friday Night Lights"

Our favorite Dillon Panthers -- Matt Lauria, Scott Porter, and Gaius Charles -- all hung out this past September with Porter’s cute, lil' chubby baby. "'Good friends...livin' large in Texas'...and babies," Porter captioned the squeal-worthy pic. Needless to say, the only emotional response we could muster up was this spirited war cry: TEXAS FOREVER!

"All That"

The cast of "All That" (reunited at New York Comic Con this year, and every man, woman and dude who grew up in the ’90s totally lost their minds. Josh Server, Danny Tamberelli, Lori Beth Denberg, and Kel Mitchell -- and the Big Ear of Corn’s five Little Ears of Corn -- dropped plenty of fresh-out-the-box surprises, including tales from their "All That" auditions and the inspirations behind their most memorable characters.

"iCarly"

Is squealing the only appropriate emotional response to this? Miranda Cosgrove reunited with her "iCarly" costars three years after the beloved Nickelodeon show left the air. "Got to see these guys tonight :)," she posted on Instagram in February. Standing next to her, all smiles, were Jennette McCurdy (Sam), Nathan Cress (Freddie) and Jerry Trainor (Spencer). The cast also reunited for Cress' wedding this past November -- and the photo booth snaps were seriously adorable.

"Harry Potter"

Draco Malfoy posted this magical (sorry) pic of him hanging out with the Weasley squad, James Phelps, Bonnie Wright and Rupert Grint. Tbh, it was nice to see Malfoy and the Weasleys -- once mortal enemies in the wizarding world -- living in harmony after all these years.

"Cruel Intentions"

Reese Witherspoon, Selma Blair and Sarah Michelle Gellar had a girls night out at The Rockwell in Los Angeles last month, where they sang their hearts out to -- wait for it! -- "Cruel Intentions: The Musical." SMG and Blair even recreated their infamous kiss from the '90s teen flick and oh my god it was just as magical now as it was 16 years ago.

"High School Musical"

Ashley Tisdale, Corbin Bleu, Monique Coleman, Lucas Grabeel and Olesya Rulin met up with "HSM" director Kenny Ortega at the red carpet premiere of his new Disney Channel Original Movie, "Descendants." Obviously, they were all in this together.

"Suite Life of Zack And Cody"

Ashley Tisdale had the suite-est reunion of them all when she reunited with her "Suite Life of Zack and Cody" costars last month. "I love seeing these boys," she wrote of twins Dylan and Cole Sprouse. "My little brothers have grown into such smart, talented, and genuinely great people." Aww!

"Lizzie McGuire"

Miranda and Lizzie, together again! In April, former "Lizzie McGuire" star Jake Thomas posted this amazing snap of him reuniting with his former Disney Channel costars, Hilary Duff and Lalaine, on Insta. The trio -- sans Gordo, SIGH -- looked happy to be back together after more than a decade apart. Next time, guys, just make sure to give Gordo a call. We know he hates bowling and all, but nobody likes to feel left out!

"That's So Raven"

Oh, snap! In August, queen of shade Raven-Symoné surprised us all by posting a photo of herself reunited with her fellow "That's So Raven" cast members, Kyle Massey, Anneliese van der Pol and Orlando Brown on her Facebook page. Later, it was revealed that the cast got together for a cheery throwback segment on Raven's new talk show gig, "The View." Naturally, the taped reunion was full of LOLs and cast ~ secrets ~.

"Zoey 101"

We waited 10 years for the answer to find out what Zoey Brooks said in the time capsule, and on September 18, 2015, we finally got it. In celebrated of the iconic "Zoey 101" episode turning 10, creator Dan Schneider and Nickelodeon aired a five-minute video starring Chase and Michael. In it, Chase finds out what Zoey really thought of him -- and whether they were really meant to be after all.

"Gilmore Girls"

MTV News was lucky enough to be in the audience when all of our favorite Stars Hollow residents reunited at the 2015 ATX Television Festival last month -- and it was the most magical moment of our entire lives. (Even more magical than SNOW.) When asked where each character would be today, Lauren Graham said she thinks Luke and Lorelai are "still together, 100 percent." As for Rory? Well, she still can't decide between her ex-boos. Alexis Bledel, to her credit, is playing it like Switzerland, even eight years later. "They’re going to hate me," she said.

Well, as it turns out, we won't need to wait much longer. Grab the coffee and order some of Stars Hollow's world-famous Chinese food because a "Gilmore Girls" revival is currently in the works at Netflix -- and this time, creator Amy Sherman-Palladino gets to write her picture-perfect ending.

"Victorious"

Recently, the OG cast of Nickelodeon's now-defunct show "Victorious" reunited with a festive pajama onesie party -- and everyone was there. (Yes, even Ariana Grande.) The cast -- including Victoria Justice, Avan Jogia, Elizabeth Gillies, Leon Thomas, M.H. Bennett, Daniella Monet and Grande (sans Cat's signature cherry red locks) -- uploaded a flurry of adorable photos from the onesie party on Insta, and honestly, it was like nothing had really changed for the former Hollywood Arts squad. They even watched old episodes of "Victorious" together! Aww.

"Degrassi"

Brb, crying forever because Drake finally acknowledged his past life at Degrassi High. The rapper formerly known as Jimmy Brooks was all smiles (!!) while hanging with his former "Degrassi" class mates Daniel Clark, Adamo Ruggiero and Lauren Collins. So how about we all meet up at the Dot sometime, eh?

"Drake & Josh"

Hug me, brother: Drake Bell and Josh Peck reunited after seven long, terrible years apart -- and it was truly magical. Expect Bell to stir up trouble for Peck (what else is new, right?) on Fox's "Grandfathered" in 2016. Until then, you can bask in the glory of their reunion pics and wonder what kind of evil plan Megan (Miranda Cosgrove) must be plotting against them in this very moment.

"Full House" "Fuller House"

When John Stamos announced "Fuller House," a wave of nostalgia hit '90s kids like a tsunami of emotion. The Netflix revival will reunite nearly the entire cast (sadly, Mary-Kate and Ashley Olsen passed on a cameo) from the classic family sitcom. With filming already wrapped in Los Angeles, we seriously CAN NOT wait to see these humans back on our TV computer screens together again.