This Week In Celebrity Tweets: Ke$ha Is Pantsless, Willow Smith + Justin Bieber, Rihanna Eats Ramen?

(Credit: Getty Images)

Time for our weekly Twitter wrap-up! There were a couple of interesting surprises this week--first, we found out Justin Bieber is a huge Judd Apatow fan (Beibz tweeted about him three times this week!). We also discovered that Paramore's Hayley Williams does her Christmas shopping online, and Rihanna chows down on Ramen Noodles? Um, is there a Ramen diet? I'll try it for her legs. #amazing

In other news, Willow Smith announced she'll be touring with Justin Bieber on the European leg of his tour, Maroon 5's Adam Levine celebrates John Lennon's life and Ke$ha wants you to check out her butt on the cover of Complex magazine. Am I the only one that wants Ke$ha to open a charm school?

And I would just like to thank Rihanna for trying to make favorite phrase du jour happen on Twitter: #BOOM. Best hashtag ever. Maybe she can get on board #TeamThighsTouch next?

Check out more tweets from Katy Perry, 30 Seconds to Mars' Jared Leto and more below, and be sure to follow us at @MTVBuzzworthy!

KATY PERRY

@katyperry

Just found out that has gone to #1 on the BILLBOARD charts! AMAZING! Thank U so much! That's 3 songs from Teenage Dream in a row!

LADY GAGA

@ladygaga

"I've had enough, this is my prayer, that l'll die living just as free as my Hair." -Mother Mons†er

JUSTIN BIEBER

@justinbieber

Just landed and heard its @ bday. Everyone needs to post clips of judds movies. Dude is a . Happy bday Judd

WILLOW SMITH

@OfficialWillow

Got news that my big bro @ invited me on his European Tour in March..so exciting! Maybe I'll let Jaden come..LOL

KE$HA

@keshasuxx

Check my a-- out on the cover of the new issue of COMPLEX!! I am not wearing any pants. Not even a little bit.

RIHANNA

@rihanna

Bout to eat some Ramen noodles, and pass out! Luv yall man! Who's meetin here 2mo? Let's talk some more s---!

PARAMORE's HAYLEY WILLIAMS

@yelyehwilliams

Christmas shopping onlinnnneeee.

MAROON 5's ADAM LEVINE

@adamlevine

Sadly, today is the anniversary of John Lennon's death. Coincidentally an amazing moment to celebrate his life. Happy Xmas (war is over)

SNOOKI

@sn00ki

I whip my eyelashes back and forth.

30 SECONDS TO MARS' JARED LETO

@jaredleto

The traffic headed to the venue in germany. Its not so bad sitting in traffic when its your own. :)