What a difference four years makes. Raven Symone has grown up before our eyes — going from being a Cosby kid to the star of That’s So Raven. In the process, Symone has slimmed down from her once fuller figure.

The photo on the left is from the Los Angeles premiere of Wild Hogs held at El Capitan Theater in Hollywood back in February 2007. On the right, the Disney star looked slim and sleek at the People’s Choice Awards on Wednesday.

American Idol sweetheart Jennifer Hudson joined Weight Watchers and transformed her body so dramatically that she became the official spokesperson for the company.

When Jennifer won an Oscar for Dreamgirls in 2007, she was a voluptuous flower, but on November 20, 2010, she was photographed in New York at an event at the Metropolitan Pavillion — a full five dress sizes smaller.

And how about Kelly Osbourne? She’s lost 42 pounds on the year, transforming from a goth-like daughter of a rock star, to a star in her own right.

Looking good ladies!