Stars like Christina Applegate, Isla Fisher and Alanis Morissette were confused about what to wear to the Rock A Little, Feed A Lot benefit concert in L.A. last night. Fancy or casual? LBD or ill-filling trousers? Tuxedo or plaid shirt!?!?!?!

Christina Applegate: Sleek, basic, body-conscious black. Safe? Sure. But also classy.

I'm not a huge fan of Isla Fisher's pleated leather skirt, but she looks comfortable and cool.

Remember when Katharine McPhee was a brunette who wore pretty dresses? Now she's a blonde in liquid leggings. Downgrade.

More liquid leggings… But since Jillian Michaels looks prepared to kick my ass, I'll shut up.

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Not sure about the vest, but I love Sheryl Crow's punky plaid pants.

Alanis Morissette's basic black stays interesting with a drapey neckline.

I'm probably one of the few fools who actually watched the Disney Channel original movie Gotta Kick It Up!, in which Camille Guaty starred — it's about Latina teens on a dance squad, and I do not recommend it. But call me crazy: I think wearing a tiger tee to a rock event is okay.

Marcia Cross looks dramatic in black, what with the flawless, pale skin and fiery hair, but the neckbow on that top is a No.

I like Courteney Cox's easy purple shift dress, but someone should have told her that when she puts her hands in her pockets it looks like she's about to announce an Unsolicited Uterus Update.

Jenna Dewan, aka Nora in Step Up, aka Mrs. Channing Tatum, chose regular leggings over liquid leggings and a tunic made from birthday present gift wrap.

Dear Lance Bass: It appears that your jacket does not fit, and you're trying to fake it by wearing it open, with the sleeves pushed up. I know this trick, because I have done it before. That is all.

Jimmy Jean-Louis is a Haitian actor known for his character — creatively called "The Haitian" — on Heroes. He is also very handsome, very dapper, and, sadly, overdressed for this event. Or maybe everyone else is underdressed? Don't change a thing, Mr. Jean-Louis. We love you just the way you are.

Lisa Kudrow has made some bad choices. Namely: That jacket with that T-shirt, those pants and those shoes.

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