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WEEK AHEAD: Will Justin Get Slimed at Kids' Choice? | Justin Timberlake
Justin Timberlake takes the helm of Nickelodeon's annual Kids' Choice Awards. PEOPLE takes a look at the high-wattage show, plus other events to watch for in the coming week:

TUESDAY, MARCH 27: It's the kiss that's been talked about for months: real-life BFFs Jennifer Aniston and Courteney Cox will share a smooch when Aniston guest stars as a rival magazine editor to Cox's tabloid editrix Lucy Spiller on the FX show Dirt (10 p.m. ET). But don't expect anything down-and-dirty. Take it from Cox herself: "If you think it is just about a major make-out session, you will be disappointed," she warned on Access Hollywood. Either way, it will be fun to see the Friends reunited on the small screen.

They've been mentored by Diana Ross and 60s stars Peter Noone and Lulu. What will happen when Gwen Stefani stops by American Idol to hang with the Top 10 finalists? Hopefully, an explosion of leopard print! Well, that and some sweet pop music. Stefani will mentor the contestants on Tuesday's pop-themed show (FOX, 8 p.m. ET) and then come back to perform her single "The Sweet Escape" with Akon on Wednesday (FOX, 9 p.m. ET). Here's hoping one of the Idol hopefuls is brave enough to belt out "Hollaback Girl." For more about Idol, check out our American Idol

Jennifer Lopez is back with her first album since 2005's Rebirth and this time she's singing completely en español on the Spanish-language Como Ama Una Mujer (How a Woman Loves). Led by the single "Que Hiciste," Lopez gets a hand on from husband Marc Anthony. But don't expect the dance-heavy grooves she's known for – look out for a more ballad-heavy approach.

SATURDAY, MARCH 31: As always, the A-list is turning out to celebrate Nickelodeon's annual Kids' Choice Awards and getting the party started is this year's host, Justin Timberlake, who's sure to bring the sexy (albeit of the more tween-friendly variety) to the live telecast (Nickelodeon, 8 p.m. ET). Beyoncé, Gwen Stefani, Will Ferrell, Hilary Duff are on board as presenters. And how can you not love a show that awards a prize for best burp – an honor Timberlake has taken home twice.

NEW THIS WEEK:
Movies (now in theaters): Reign Over Me, starring Adam Sandler, Don Cheadle and Jada Pinkett Smith; Pride, starring Terrence Howard and Bernie Mac; Shooter, starring Mark Wahlberg and Danny Glover; The Hills Have Eyes II, starring Jacob Vargas; TMNT, starring Patrick Stewart and Mako; The Last Mimzy, starring Rainn Wilson, Joely Richardson and Timothy Hutton
Music (in stores Tuesday): Good Charlotte, Good Charlotte; Macy Gray, Big; Kaiser Chiefs, Yours Truly, Angry Mob; Tim McGraw, Let It Go; Mika, Life in Cartoon Motion; Young Buck, Buck the World
DVDs (in stores Tuesday): Happy Feet; The Pursuit of Happyness; Children of Men; Full House – The Complete Sixth Season; Curse of the Golden Flower; 7th Heaven – the Complete Fourth Season