If you haven't grabbed a prom dress yet, Dillard's is a great place to shop — you can find options for as little as $42.

On Sunday, Rihanna was seen out at the event in a black lace maxi dress. The skirt of the slip had a super-high leg slit on one side, which revealed a sliver of Rihanna’s matching lacy thong.

Katrina Kaif mesmerizes at an awards show in a bright blue satin lace ... of high-impact style with very little effort. Take notes from her minimalist approach, and let your dress do the talking.