Jessica Simpson Goes on Revenge Diet

Now that Jessica Simpson is single again, she's ready to get her banging body back, so she's embarked on a "revenge diet."

Jess is determined to shed some weight and show Tony Romo what he's missing.

“Right after Tony ended things, Jessica said, ‘I want my old body back,’” a friend of the singer told OK! magazine. “She went into her kitchen, got a trash bag and started to clear it out.

“Jess is serious about getting her body back into fighting shape. Working out is helping to give her focus and clear her head. It’s better than sitting around moping or throwing pity parties with ice cream sundaes.”

She's reportedly already lost almost ten pounds and is determined to lose a lot more. Hey, better late then never!