Now through Feb. 6, fans can upload a 30-60 second video of themselves singing along to Perry’s “Kissed a Girl” to CBS.com/Grammys. The most popular video will be part of Perry’s performance during the Grammy broadcast. The winning videos will air during Perry’s performance on the February 8th show, and the grand-prize winner gets $5,000.

The videos will be voted on by online viewers who will determine the Top Fan Video.