American Music Awards Winners, Performers Talk About The Big Night In Today's Tweet Dreams

To say that Justin Bieber had a big night at the 2010 American Music Awards would be something of an understatement. The "Baby" singer walked away with four trophies last night, including the coveted Artist of the Year award. Justin tweeted after his win, "I can't stop smiling!! WE DID IT!!! #NEVERSAYNEVER!!!!!!" and was in shock well into today, as he wrote, "still cant believe it -" Of course, Justin's mentor, Usher, had a big night of his own and acknowledged on his page, "S/O to the whole #TEAMUSHER for me tonite, Thank you!"

But Justin wasn't the only artist to start a Twitter frenzy. Last night's broadcast premiered the union of beloved boy bands New Kids on the Block and Backstreet Boys (to create heartthrob super group NKOTBSB, pictured.) They performed a mash-up of their greatest hits, and despite a few snafus (NKOTB's Jordan Knight admitted, "I'm glad I still have my teeth....that mic smacked me right in my grill!!!" while BSB's Nick Carter griped, "Don't you love it when your about to do a performance and your ear piece shorts out. Wow!!"), they loved it just as much as their fans did. New Kid Donnie Wahlberg tweeted on behalf of both groups and their upcoming tour, "had such a good time w my friends today And my new friends! #NKOTBSB To the believers- thanks! We had fun now its your turn! Here we come!"

Check out the rest of the best tweets from the AMAs, including stars who attended (like besties Katy Perry and Taylor Swift), those who watched from home (Khloe Kardashian loved all the fashions she saw on TV) and those who partied afterwords (well, hello, Chord Overstreet and Miley Cyrus!) Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@therealsavannah Words can't describe how amazing tonight was. Thank you EVERYONE for watching the @officialAMAS Pre Show. I had the best time performing!

-Savannah Outen, Singer

@ladyantebellum Here at the AMAs!!! They won't let us in..... :)

- Lady Antebellum, Country Group

@shakira named Best Latin Music Artist at last night's American Music Awards. BIG thanks to all of you who voted.

-Shakira, Singer

@iamdiddy I feel truly blessed to have been on the AMAs-thank u all so much who tuned in+sent us positive energy-i love you all!

-Diddy, Rapper, Actor ("Get Him to the Greek")

@neyocompound Hada a blast at the AMA'S. Hope y'all liked the performance!! Shout out everybody that hit that stage and gave it EVERYTHING they had!!! LUV

-Ne-Yo, Rapper

@jennettemccurdy I had a blast at the AMA's! Here's a pic of me on the red carpet:

-Jennette McCurdy, Singer, Actress ("iCarly")


-Rihanna, Singer

@taylorswift13 Guys... Thank you for the AMA. I'm so thrilled and thankful. I'm so excited, I think you've cured my jet lag!

-Taylor Swift, Singer

@katyperry @taylorswift13 gurl your hair looked amazeballs!

-Katy Perry, Singer

@khloekardashian I'm just catching up on the AMAs. Wow soooo many people looked amazing on the red carpet! Congrats!

-Khloe Kardashian, Reality Star ("Kourtney & Khloe Take Miami")

@carrieanninaba CHristina Aguiliera is amazing. So glad she's out there tonight! She can SAAANNNGGG!

-Carrie Ann Inaba, Reality Star ("Dancing With the Stars")

@tarynmanning I thought Kesha was fine...she did her thing, she has hit songs worldwide now-standard wise! Good for her!

-Taryn Manning, Actress ("Crossroads," "8 Mile")

@nickyhilton My favorite AMA performance was definitely the Black Eyed Peas.

-Nicky Hilton, Heiress, Designer

@iharryshum Ok. @pink you are my hero! Such a kick ass performance.

-Harry Shum Jr., Actor ("Glee")

@pink i think Kid Rock killed it tonight. had to add that...

-Pink, Singer

@chordoverstreet Chillin at mileys prty

-Chord Overstreet, Actor ("Glee")