7 / 10

Anika Noni Rose

Anika Noni Rose delivered a style no-no upon arriving at Elton John's annual Oscar party in this revealing Basil Soda bomb. The singer/actress is beyond beautiful -- and we're loving her exaggerated bun -- but, showing this much skin at an AIDS fundraiser is a tad tacky.

What Were They Thinking?!

This week's worst-dressed stars include Katy Perry, Rihanna, and Vanessa Hudgens.