Celebrity Tweets 4/11, 4/12 and 4/13

It's Friday, April 13. Here's what the stars have been tweeting this week:

“Recording the next album. So happy,” wrote Taylor Swift.

“Thanks @cdixonai11 [Colton Dixon] for performing my song Love the Way You Lie part 3 on #AmericanIdol !!!!!!!” wrote Skylar Grey.

“Just saw the j. Sanchez performance from last night and she killed!!! so honored she chose my song! thanks mamaz and good luck!” wrote Jazmine Sullivan.

“Sometimes I still get nervous to see @XChadballX after some time apart and my armpits get real sweaty and it's not cute. #ormaybeitis,” wrote Hayley Williams.

“No better feeling that a peaceful baby sleeping on your chest...wonder what he's dreaming about? #happymommy,” wrote Hilary Duff.

“I never get nervous before a theater performance. I only get nervous when I have nothing to do but sit here and watch myself #Apt23,” wrote James Van Der Beek.

“In vocal booth recording ‘Coming up on America's Next Top Model’ voice overs. #RandomActsofModeling there,” wrote Tyra Banks.

It looks like Katy Perry is about to debut a new ‘do, which appears to be purple.

“Somehow in the middle of all this... I found time to change my hair color... Finally... #takeaguess #foreverawalkingpantonepalette,” she wrote.

“When my husband sits down at the piano and starts singing at home for fun, I realize what a lucky gal I am to be in that audience of one,” wrote Mandy Moore.

“I was side stage, didn't realize what was happening…had to run back out! Never a dull moment,” wrote Ryan Seacrest about when Jennifer Lopez, Steven Tyler and Randy Jackson stormed the stage when Jessica Sanchez was singing for a save.

“Idol was criminal tonight. almost identical to the Pia fiasco of 2011. We live in a unjust world,” wrote Dax Shepard.

“Just watched Hunger Games. What a fantastic film! Really enjoyed it. Amazing cast and interesting story line. Loved it,” wrote Paris Hilton.

“One of the cutest compliments I ever got! Egypt points to the TV and says "Mom!" lol!! That's Lena Horne!!!” wrote Alicia Keys.

“Love that stupid hoe song from nikki majdkdiedon,” wrote Skrillex.

“Ok 2 minutes till the finale of #upallnight. Then I will have to start tweeting about other stuff. Like, my workouts,what I ate, blah blah Or the birds, or American idol, or my shoes, my grey hair, my album just kidding no album, politics yikes what else?” wrote Christina Applegate. “Nah, I'm just going to spend the summer retweeting crap.....enjoy. Aloha.”

“Getting ready for my 2nd LIVE! With Kelly @LiveKelly! Excited. I think I'll spice things up by dropping some F-Bombs every 5 or 10 seconds,” wrote Joel McHale.

"I thought I was the only one who got frustrated on the tennis court until I youtubed "Tennis Tatrums". Everybody hurts. Sometimes,” wrote Josh Groban.

“I'm bringing bubble wrap and a helmet today for Maria. She had an epic face plant yesterday during salsa ,” wrote Derek Hough. “Can’t take any risks either . It's Friday the 13th and weather is crazy ! Loudest thunder I've heard in LA .”

"Friday the 13th. Owwww!" wrote Kim Kardashian.

“I met my wife, @jennyandteets , on a Friday the 13th. So I have total proof that it is indeed the unluckiest day on the calendar,” wrote Jason Biggs.

“On set with all the crazies! My outfit makes me look like a banana!” wrote Eva Longoria.

“Listened to ‘Creep’ today while working out. Its so awesome to rediscover Radiohead over and over. Always a new experience,” wrote Lady Gaga.

“Funny name check on the office last night- i'll steam room with you anytime ed helms!” wrote John Stamos.