Quirky breakout pop star of '08 Katy Perry is holding a sing-a-long contest.
Fans can upload a 30 to 60 second clip of themselves singing along with Katy to I Kissed a Girl onto the CBS website.
There will be 20 top winners whose videos will be shown during Katy's Grammy performance of Kissed a Girl on Feb 8.
CBS is also giving out $5K in cash prizes.
Not a bad deal for doing what you already do at home in the shower.