Ashlee Simpson Gives Singing a Shot

2/24/2008 5:32 PM PST
Stop the presses! Ashlee Simpson left her karaoke machine at home last night for a performance at LAX Nightclub at the Luxor Hotel in Las Vegas -- finally unleashing her stellar vocals on a live audience. Take that, Paula!

Her creepy father, Joe, and bassist boyfriend Pete Wentz were there to support her -- as she traveled through the undiscovered realm of not faking it.

At least she tried.