Katy Perry's Upcoming Tour And News From The 'Vampire Diaries' Set In Today's Tweet Dreams

It was just last week that Katy Perry announced she'd be heading out on a whirlwind tour with Robyn, and now fans are getting some details about just what they can expect. Katy (pictured) revealed to Rolling Stone that, "It's the first concert that's going to smell good. It's going to smell like you're in cotton candy heaven." Sweet! Luckily, fans won't have to wait much longer as the singer alerted from her Twitter today, "WHO'S EXCITED TO WAKE UP EARLY AND GET #CALIFORNIADREAMTICKETS! DON'T MISS IT, THIS FRIDAY/SAT ON SALE. Now go to bed, so you can get up! :)"

While Katy urgently reached out to followers, Ian Somerhalder took a somewhat more laid back approach regarding last night's a-ma-zing return of "The Vampire Diaries." The actor wrote, "Hope someone got around to watching the TVD episode tonight and it didn't suck. No pun-seriously If you did,thank you." It seems "TVD" fans will most definitely want to set their DVRs for weeks to come, as Nina Dobrev dropped some information, "shot a cool scene with Paul Wesley today on set... it's good to be in school again ;)"

Check out the rest of Friday's best tweets from the stars to find out who stopped by the sets of "Ten Year" and "Grey's Anatomy"! Follow us @hollywoodcrush to get even more celebrity and pop culture news around the clock!

@msleamichele So excited to sing at the Superbowl!!!! It's gonna be so much fun!!! See you soon Dallas!!!

-Lea Michele, Actress ("Glee")

@jennaldewan It's a wrap on 10 year!! Sundance here I come!

-Jenna Dewan, Actress ("Step Up," "Take The Lead")

@trinarockstarr My life is a vacation.. Hawaii here I come!!!!!

-Trina, Singer

@oliviamunn OMW 2 MTV for "When I Was 17" interview... They're gonna be so disappointed 2 hear I basically slept thru age 17.

-Olivia Munn, Actress ("Perfect Couples," "Iron Man 2")

@katewalsh On my way to record some stuff for big Grey's crossover episode, woot!

-Kate Walsh, Actress ("Private Practice," "Grey's Anatomy")

@therobbiejones Just left the gym... @ashleytisdale is the workout master!

-Robbie Jones, Actor ("Hellcats")

@bbbaumgartner Decided to follow @kimkardashian. Been debating it for a while. Feel like I have been missing out on a lot. So Kim- don't let me down!

-Brian Baumgartner, Actor ("The Office")

@prattprattpratt i got on here cause i heard Sizzler had a twitter page. having trouble finding it. this sucks.

-Chris Pratt, Actor ("Parks and Recreation," "Ten Year")

@deenanicolemtv Long drive home I'm making my driver play ispy with me ha gotta keep myself occupied

-Deena Nicole Cortese, Reality Star ("Jersey Shore")

@jasonritter My gum has lost all of its flavor, but I want to see what happens if I keep chewing it anyway. Just as an ex-spearmint.

-Jason Ritter, Actor ("The Event," "Joan of Arcadia")