Us Wrap: Simon Cowell: Howard Stern Not the Right Match for Idol

Credit: James Sullivan/FilmMagic; Jeffrey Ufberg/

--Simon Cowell is speaking out on the rumors Howard Stern is gunning for his soon-to-be-vacant seat on the American Idol judging panel. "We have to have people on these shows who actually know what they're talking about, rather than just guessing," Cowell told a group of reporters Thursday. [PopEater]

--Jake Gyllenhaal: Music video star? The actor took on a bit role in Vampire Weekend's "Giving Up the Gun" video, as a tennis player, alongside Joe Jonas, Lil Jon and a slew of other celebs. "I was pretty surprised it all worked out," Vampire Weekend's Ezra Koenig said of the shoot. [Just Jared]

--There's a good chance Tina Fey will go rogue and reprise her impersonation of Sarah Palin when she hosts Saturday Night Live in April. "We'll try it, at least," she tells the AP. "We'll see if it makes it to air." []

--Sean Penn was charged with battery Friday in connection with a 2009 altercation with an L.A. paparazzi photographer. The actor will be arraigned March 22 on two misdemeanor charges and faces up to 18 months in jail if convicted. [Huffington Post]

--Project Runway mentor Tim Gunn is slamming Kim, Khloe and Kourtney Kardashian's new Bebe clothing line -- and feels the sisters should have their design privileges revoked! "[They] have an absence of taste and I don't think that that should be perpetuated," Gunn says. "I'm sorry I'm sounding like an old farty snob but it bothers me." [Wonder Wall]