H'wood Party Girl

Tony Romo serenaded Jessica Simpson with "Sweet Child O' Mine" at the Key Club in Hollywood Monday night. Not so strange given their karaoke history (the two covered Journey's "Don't Stop Believin'" back in January) .

But the lovebirds did give Seaside, Fla., some unexpected star power over the past weekend when they descended upon the resort town for the Fourth of July.

Jessica and Tony spent three nights partying it up on the rooftop bar at Bud & Alley's Restaurant.

While the duo were definitely having a great time, Saturday night wasn't without incident...

One onlooker saw Jess running out the front door as Tony chased her down, though it wasn't clear if they were joking or fighting.

"She didn't stop until she got to the other side of the street and ran into a sign for the post office," says B&A patron Aubrey Wingo.

Luckily, the blond babe wasn't seriously hurt, and got a hug from her man after her clumsy collision.

Who wouldn't bounce back after having the Cowboys QB kiss and make it all better?

—Reporting by Whitney English and Danielle Dixon