Jessica Simpson Laughs at All of Dane Cook's Jokes

After the shock of her betrayal by former boyfriend John Mayer when he called her his "sexual napalm" in an interview with Playboy, Jessica Simpson decided to try and laugh it off with her rumored former flame, Dane Cook!

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Jessica went out with friends in L.A. Tuesday night and ended up at the Laugh Factory, where Dane Cook was performing.

"She came in to see Dane with two girls and two guys," an eyewitness told E! News. "They snuck her into the back door right before the show began, and she sat at a table on the floor level."

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Jessica dressed casually in a Rolling Stones T-shirt, jeans and heels and enjoyed cheese pizza and Stelle Artois beer, E! says.

Dane seemed glad to have Jessica in the audience because he sent her table a round of drinks and invited her backstage after the show — definitely a nice friend to have!

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"After the first round of drinks, the waitress went over and said, 'This round is on Dane,'" the source shared. "Jessica seemed so excited.

After the show, went upstairs to the VIP section and had another round of beers.

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"The staff left, but Jessica, Dane and her four friends stayed in the VIP section after hours."