Victoria Justice

Katy Perry and One Direction's performances, Will Smith's hosting skills and more have us pumped for Saturday night.By Kara Warner Katy Perry Photo: Robyn Beck/ AFP/ Getty Images This year's Kids' Choice Awards are going to be as action-packed as ever, with Will Smith as host, two killer performers lined up and a slew of celebrities expected to be in attendance. Here are the five things we're looking forward to during the live show at 8 p.m. Saturday: Katy Perry's Performance
Perry is not only one of this year's top nominees, but the "Teenage Dream" singer will also take the stage at USC's Galen Center to present and perform. So what song will she sing? What will she wear? Will her hair still be blue? One of Perry's biggest hits, "Firework," is up for Favorite Song. She is also nominated for Favorite Female Singer and Favorite Voice in an Animated Movie for her role in "The Smurfs." A Host With Big Willie Style
Nickelodeon hit the jackpot of high-profile celeb hosts in landing Will Smith for their master of ceremonies this year. Although he's one of the biggest stars around, it's been awhile since we've seen the former Fresh Prince. We've seen a lot of his son Jaden and daughter Willow, who are becoming big stars in their own right, but we are psyched to see what Smith has planned as host. Will he be joined onstage by his kids? Will he incorporate a few of his famous friends into the act, like Tom Cruise? Will we get a sneak peek at new footage from the upcoming "Men in Black III"? We'll have to wait and see. One Direction Break Hearts Stateside
The cute and charming lads of "it" boy band One Direction will no doubt bring the house down with whatever they perform on the show. A word of advice to the lucky folks attending the show: Think about bringing earplugs to protect yourself from the enthusiastic, high-pitched screams that will take over the Galen Center the instant the British pop group takes the stage. And they're not taking the opportunity lightly. "Kids' Choice is the biggest night on Nickelodeon," Niall Horan told MTV News about the magnitude of their appearance on the show. "All the big stars are going to be there, and when we found out it was just us and Katy Perry performing, we were like, 'Geez, this is a big deal.' " An Appearance By a First Lady
Talk about upping the style and class factor! The fact that the very well-respected FLOTUS will be on hand to present Taylor Swift with an award is a really big deal. Michele Obama will honor Swift with the Big Help Award, in recognition of her philanthropic efforts, including work with U.S. tornado and flood survivors. Obama herself was the recipient of the award in 2010, in recognition of her Let's Move! Campaign, which champions healthier lifestyles for kids. And, as if that weren't enough to establish her Nick cred, earlier this year, Obama also appeared on a special episode of "iCarly" to promote her Joining Forces initiative to support military families. Who Will Get Slimed?
On to the most intriguing and entertaining part of the annual awards show: Who will get slimed? Despite the sticky, icky and total-mess factor that is involved with being covered from head to toe in the network's trademark green slime, it is considered an honor to get hit with the goo, which is said to be a mixture of green Jell-O, shampoo, oatmeal and flour. The illustrious list of previously slimed celebs includes: Katy Perry, Will Smith, Tom Cruise, Justin Timberlake, the Jonas Brothers, Jackson Rathbone and Russell Brand. So who's going down this year? Traditionally, the host is a prime target toward the end of the show, so we can probably count on seeing Smith covered in green, but who else? Maybe Perry or one of the presenters — Chris Rock, Emma Stone, Andrew Garfield, Zac Efron, Victoria Justice, Big Time Rush or Cee Lo Green. Don't miss the Kids' Choice Awards on Saturday at 8 p.m. ET/PT on Nickelodeon. Related Artists Katy Perry One Direction

Pop star is also up for three awards, including Favorite Song ("Firework") and Favorite Female Singer.By John Mitchell Katy Perry Photo: Theo Wargo/ Getty Images Katy Perry is one of the top nominees at the 25th annual Nickelodeon Kids' Choice Awards, and she's just announced that she'll also take the stage at USC's Galen Center to perform at the awards show on March 31. The pop star, whose Teenage Dream: The Complete Confection special edition album hits stores March 27, is enjoying yet another hit with her new single "Part of Me," which debuted at #1 on the Billboard Hot 100 last month. The song is Perry's seventh career chart-topper. One of her biggest hits, "Firework," is up for the Kids' Choice Award for Favorite Song. She is also nominated for Favorite Female Singer and Favorite Voice in an Animated Movie for her role in "The Smurfs." "Katy Perry has doubly earned her position as kid favorite — through her music, of course — but also for reveling in an outrageous sliming on the show two years ago," Marjorie Cohn, president of Original Programming and Development at Nickelodeon, said in a statement. "She works hard and plays hard, and that's what makes her performance on the KCAs one to look forward to." Perry will join host Will Smith and a powerhouse roster of celebrity presenters, including Chris Rock, Emma Stone, Andrew Garfield, Zac Efron, Victoria Justice, Big Time Rush and Cee Lo Green. Red-hot boy-band sensation One Direction is also performing at the show. Fans can now vote on who takes home the famous blimp award on the KCA website and on Facebook page. New this year, fans will also be able to vote for their favorite nominees on Twitter through the use of custom hash tags. Get all the info you need to support your favorite stars on Nick.com. The Kids' Choice Awards air on Nickelodeon on Saturday, March 31 at 8 p.m. Whom are you voting for at the Kids' Choice Awards? Let us know in the comments section! Related Videos MTV News Extended Play: Katy Perry Related Artists Katy Perry