Jessica Simpson is devastated and getting hammered every time she thinks of John Mayer tapping the spectacular booty of Jennifer Aniston.

But another Mayer ex, Minka Kelly, is all good with it.

"I wish them the best," the Friday Night Lights star said at NBC's upfront presentation in New York City on Monday night.

The extremely hot actress, 27, and the lame singer, 30, debuted as a couple in October 2007, but called it off in January.

"John initiated the split," a friend of the couple said at the time. "He just wasn't ready to commit to Minka or to anyone."

That's the understatement of the year. Guy cycles through women (and Perez Hilton) like nobody's business.

John Mayer and Jennifer Aniston have been hot and heavy in Miami and New York over the past few weeks. Ew.