Last night Kristen Bell and Josh Duhamel attended the Hollywood premiere of When In Rome, and the co-stars looked smokin' hot on the red carpet. Of course, I'm dying to yank that rope on Kristen's dress ... maybe it does something fun like hike the garment up a few feet? Hmmm...

Okay, Kristen Bell is no Julia Roberts and Randy Jackson is no Simon Cowell, but still! Both showed up to the Letterman show to promote When in Rome and American Idol, respectively.

But what we really wanna know is if Kristen has any juicy gossip about her co-star Josh Duhamel's alleged extramarital affairs AND if Randy thinks Idol can survive without Simon...

We can't wait to see Kristen Bell in a hoochie mama costume!

Bell has signed on to co-star with Christina Aguilera in the upcoming film Burlesque,, according to The Hollywood Reporter. The film follows the trials and tribulations of a small-town girl (Aguilera) who joins a Hollywood Pussycat Dolls-kinda risque review. Bell will be Xtina's nemesis - the singer/dancer who's already the leader at the club but who gets knocked outta the top spot by the new girl.

Did we know Kristen Bell could sing? Can't wait for this!

Sure, she was a total hottie in Forgetting Sarah Marshall, but we haven't seen much of Kristen Bell lately, so she kinda fell off the radar! The actress and her boyfriend Dax Shepard were snapped in Hawaii yesterday, and the couple did super normal things like slather sunscreen all over themselves and read on the beach. Aww, it's always refreshing to see a couple who doesn't thrive on drama! (We're talking to you Lindsay and Sam!)

Kristen Bell, at the premiere of her new Judd Apatow produced comedy, "Forgetting Sarah Marshall", was lookin' a bit stiff, not to mention old, although she's only 27, on the red carpet in a beautiful blue and white strapless dress. Is it the blue eye-shadow and the updo or the fake smile?

As an actress, ya'd think she could act happier than that!

Gossip Girl Kristen Bell (who's 27!) and Hayden Panettiere (only 18) both attended the Christian Louboutin event in Hollywood last night, and will soon appear together on NBC's Heroes. But more importantly...

Who worked the red - well, black in this case - carpet better? (Is it just us or is Kristen looking a little too casual?)

Honoree Jennifer Connolly and Hero Kristen Bell both wore short, beaded dresses to the Elle Magazine Women in Hollywood event at the Four Seasons Monday night. But while Kristen goes for a more monotone look (even her hair matches the gold gown and shoes), Jennifer paired thick black sandals with her white mini-dress. Which look worked best?