KATY PERRY AND JOHN MAYER

He’s like some loveable stalker: If there’s a lonely- and attractive- female celebrity around, John Mayer just gets in there.

Perhaps, he’s actually a groupie at heart?

Or he needs his ego and another part of his anatomy stroked?

Months before his date with Katy Perry, we at Fast Track took bets that she would be his next target.

Like Taylor Swift, like Jennifer Aniston, like some many others.

Will anything come of this liaison?

We doubt it.

Ms Perry still seems hurt yet deeply in love with ex-hubby Russell Brand and John Mayer desperately needs something to get him back into the headlines.

BOSTON