Allison Williams - Grammys 2013 Red Carpet

Allison Williams is gorgeous on the red carpet at the 2013 Grammy Awards on Sunday (February 10) at the Staples Center in Los Angeles.

The Girls actress was brought by Katy Perry as her date!

“She’s the hottest date,” Allison said on Anderson Cooper‘s show. “She’s a friend of mine and she’s nominated, as she should be. I can’t wait to go. Obviously she’s awesome. She’s the best.”

Be sure to tune into the 2013 Grammys for all the latest in music entertainment – the show is airing RIGHT NOW on CBS!

FYI: Allison is wearing a Kaufman Franco dress with Stephen Webster jewels.