Which brooding, shaggy-turned-'80s-haired pop star, who thinks he's much deeper than he actually is, blogs about his obsessions—expensive guitars, expensive watches, expensive haircuts—on a Japanese website, and has dated a wide array of stars, has recently taken up with yet another actress in a pathetic attempt to boost his Q rating? The singer tried to get noticed for his new haircut, and when that didn't work, he gave this desperate wannabe-housewife a call.

Yes, John Mayer's at it again. Last weekend he was spotted kissing Jennifer Aniston, and photos of the pair looking suspiciously happy were conveniently taken in Miami. (Interesting for a woman who zealously guards her privacy when she feels like it.) Mayer's appetite for coverage in the celebrity weeklies was undoubtedly whetted by his on-again, off-again relationship with Jessica Simpson, which finally ended for good in June 2007. Since Simpson, he's "dated" with Cameron Diaz and Friday Night Lights starlet Minka Kelly, both of whom were good for photo ops and breathless tabloid items. Of course, it goes both ways. Aniston has a lot riding on this fall's He's Just Not That Into You—she has to prove that the success of The Break-Up wasn't just due to her ex Vince Vaughn, and it would also help for her to have a relationship that doesn't end with her being portrayed as needy and desperate. Guys, it seems, just aren't that into her lately.

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