'VH1 Divas': Jennifer Hudson's dramatic weight loss continues

Whoa! Jennifer Hudson has been on a mission to get healthy for the last two years. We were impressed by her 80 lb weight loss in 2010, and when we saw her at the "VH1 Divas Celebrates Soul" show we were blown away. The former "American Idol" contestant went from a Size 22 to a Size 0!

For a second there, we thought she was Kelly Rowland.

Hudson stepped out for "VH1 Divas" in a sassy minidress and daring, sparkly Francesco Scognamiglio thigh-high boots -- completing her look with Jacob & Co diamonds, as any true diva should.

The Weight Watchers spokesman took the stage Sunday night with an injured Kelly Clarkson,
Mary J. Blige,, Jill Scott, Florence + The Machine, Jessie J, and more, for the show which airs Monday, Dec. 19 at 9 p.m. EST. (So, basically... right now.)