Paris Hilton -- Karaoke Challenged

1/24/2008 4:00 PM PST BY TMZ STAFF
Paris Hilton has Bette Davis' eyes -- and apparently her voice too.

Mess Hilton was at Sundance on Sunday, torturing attendees with her vocal stylings at a private party. First the world had to endure her album, now she's back to throw salt on the wounds!