John Mayer Negotiating with Aliens?

5/21/2007 4:00 PM PDT BY TMZ STAFF
John Mayer, newly busted-up borefriend of Jessica Simpson, was spotted in NYC today, ranting on his cell phone about an alien hostage situation and helicopters ... and about needing some pizza!?!

Obviously pulling the collective leg of the stalkerazzi, Mayer wouldn't answer questions about his widely reported split with the cleavage queen Jessica, but instead put on quite a show for photogs following him.

Mayer doesn't appear to be too heartbroken, but then again, he's quite a kidder.