Nickelodeon's 20th Annual Kids' Choice Awards has set a glittering, super-sized constellation of Hollywood's hottest stars to join host/nominee/two-time Best Burp winner Justin Timberlake for the live milestone telecast Saturday, March 31 (8 p.m. ET; tape delay PT) from UCLA's Pauley Pavilion. Beyonce, Will Ferrell, Steve Carell, Queen Latifah, Mike Myers, Zac Efron, Bindi Irwin, Hilary Duff, Jessica Alba, Jamie Lynn Spears, George Lopez, Jon Heder, Chris Evans, Drake Bell, Emma Roberts, Jesse McCartney, Nelly, Ciara, Shia LaBeouf, Hayden Panetierre, Ice Cube, Masi Oka, Ty Pennington, Tyler James Williams, Devon Werkheiser, Lil' JJ, Nat Wolff, Alex Wolff, Chris Brown, Tom Kenny and Ryan Sheckler will amp up the wattage at the event often hailed as an Oscars for kids, as they participate in the record-breaking kudos/mess-fest.

"Kids' Choice is a fantastic mix of mega-stars and mega-mess, and our 20th anniversary show will be the biggest, loudest, messiest, star-filled spectacle in two decades," said Marjorie Cohn, Executive Vice President, Development and Original Programming. "This is the event where Hollywood celebrities come to play and this year if you want to be seen, you gotta go green because we'll be breaking the slime barrier."

In her first-ever KCA performance, Grammy Award-winning superstar Gwen Stefani and popular singer-songwriter Akon will ignite the kid crowd with the hit title song from Stefani's new album "The Sweet Escape."

Kids' Choice veteran/2007 nominee Timberlake, who'll grab the reins as a first-time host, will set the stage for Nickelodeon's Kids' Choice traditions including the Wannabe Award, an honor bestowed on a celebrity role model who kids most "want to be." Past recipients (chronologically 2001-06) are: Tom Cruise, Janet Jackson, Will Smith, Adam Sandler, Queen Latifah and Chris Rock.

Throughout the show the slime will flow -- who knows where, when and on whom -- and true to tradition an astonished star will get the goo. Sloshing through history, past star slimees include: Jack Black, Robin Williams, Johnny Depp, Mike Myers, Adam Sandler, Tom Cruise, Jim Carrey, James Earl Jones, Rosie O'Donnell, Mary-Kate and Ashley Olsen, Will Ferrell and Ben Stiller. The sixth annual burp contest will offer a terrific new twist, featuring kids and stars, and take the noise level to a new high. Past Burp Award winners include: Cameron Diaz, Jessica Alba and Steve Irwin (shared honor), Justin Timberlake (two-time winner) and Hugh Jackman.

Nickelodeon's "Slime Across America," a 50-market interactive tour that brings the green goo directly to kids, one city at a time, kicked off at the Nick Hotel in Orlando on February 26 and continues -- in an 18-wheel Slime Mobile driven by Pick Boy -- to 20 slimy stops before arriving in LA for Nickelodeon's 20th Annual Kids' Choice Awards. The tour features the Nick Live! Slime Edition stage show, a user-generated area where kids can create content to submit to Nick's new ME:TV interactive day-part (5-7 p.m. ET/PT), Nick stars and costumed characters, karaoke, auditions -- and of course slimings! Various slimings are featured on Nick throughout March during ME:TV. (A schedule of tour stops may be found at Nickelodeon's GoCityKids website also will also offer tour info.)

In a unique star-studded pre-show telecast hosted by TEENick's J. Boogie, the Orange Carpet arrivals will interlace programming from 6 to 8 p.m. ET/PT. Celebrity interviewees will climb atop a unique stage - a.k.a. the "Slime Across America" truck, conveniently parked next to the Orange Carpet.

Nickelodeon's Kids' Choice Awards has emerged as one of the biggest events in Hollywood, boasting a massive popular vote and sweeping audience participation. It is the only award show that gives kids the power to vote for their favorites in movies, television, music, sports and much more -- and honors their opinions with a live show filled with the stars they love.

Kids will be able to vote in advance in a total of 16 categories. Surprise awards also will be announced during the show. Voting began online March 5 on A different category is being featured on-air in ME:TV each week. In fact, for the first time, kids can vote on all available Nickelodeon digital platforms including, Nicktropolis, TurboNick or text in their votes via cell phones, for the Nominees they think are deserving of Nick's highest honors.

Nicktropolis will offer a brand new virtual Kids' Choice Awards themed world where kids can stroll down the Orange Carpet, check out the KCA Control Room, sneak in Backstage, create their own Kids' Choice branded room and chat about the event in real time while watching the live TurboNick webcast together in viewing parties. TurboNick, Nickelodeon's broadband video service on, will serve as the fully interactive home during the awards show, featuring a three-hour live Kids' Choice streaming event including coverage of the Orange Carpet, Backstage, and the Kids' Choice Awards after party, all hosted by ME:TV's Alex and Jordan.

Leading up to the award show, TurboNick will feature a Nickelodeon's Kids' Choice Awards playlist, along with various clips from past awards shows and current promotions for the 20th Annual Nickelodeon's Kids' Choice Awards. Mini-site features of the KCA 2007 area in TurboNick will include KCA clips, quizzes, games, and more.

In addition to the ever-popular Kids' Choice Awards nominee special, Nickelodeon will be celebrating the 20th year of the Awards with a special retrospective called "Deep inside the KCAs" in TEENick on Sunday, March 18, hosted by Emma Roberts (Unfabulous).

Nickelodeon's 7th Annual Kids' Choice Awards was the first to air internationally in 1994 on Nickelodeon's channel in the UK and now, more than a decade later, the US show is seen in more than 205 million households across Nickelodeon's 34 channels in the UK, Europe, Russia, Israel, Asia, Australia, Latin America and Brazil. Since premiering the first KCAs in the US in 1987, Nickelodeon has launched eight fully localized versions around the globe starting with Meus Premios Brasil in 2000 and Mis Premios Nick Mexico in 2003. Annual events now also take place in Sweden, Holland, Italy, China and Australia with additional shows to launch later this year.

The official 'Kids' Choice Awards - Volume 3' CD was released on March 1 and will be available exclusively at WalMart locations. The CD is a compilation of recent hit songs selected by kids from a who's who of popular artists.