The 23rd Annual Nickelodeon Kids' Choice Awards took place in Los Angeles last night, causing celebrities to come out to spend some time and dodge some slime:

Every year, someone wears something that makes you think, "Really? To the Kids' Choice Awards? For real?" This year, that person is Katy Perry.


Her shoes were pretty nifty, though.


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Teen queen Demi Lovato kept it simple in a little black dress...


while her boyfriend, Joe Jonas, was forced to stand in between his two less stylish brothers, who conspired to arrive looking like the sad, lost children of Orville Redenbacher.


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iCarly's Miranda Cosgrove rocked an adorable magenta party dress...


while Rosario Dawson went for a simple and comfy-looking white frock.


Tyra was naturally working the smize and the pose. I really love red and yellow together, even though it kind of reminds me of the inside of the top of a McDonald's hamburger bun.


I'm pretty sure Tyra demanded that Justin Bieber smize as hard as possible right before this shot was taken.


Selena Gomez, keeping the "tween stars in adorable dresses" trend of the evening going strong.


Oh, Taylor Lautner. This kid just never looks comfortable on the red carpet.


Unlike Zoe Saldana, who looks totally adorable and relaxed.


How do you guys feel about Rihanna's sock/shoe combo?


Snoop brought his family along...


and Shaun White brought some special guests, as well.


Robert Downey, Jr. was at the show, looking like Colin Farrell's slightly nerdy older brother, for some reason.


Jada Pinkett Smith was there to support her son, Jaden...


who was there to help promote his new film, The Karate Kid, with Jackie Chan.


But everyone knows the best part of the show is the slime, which fell on Katy Perry...


Though I think Steve Carell and Tina Fey wore it best, don't you?

[All Images via Getty.]