• A classy update on the girl who wants to auction off her virginity, as only Tyra Banks can do. [DListed]

• Heidi Klum cutes it up in a new Guitar Hero commercial. [HT]

• Kate Winslet is upset over accusations that she was Photoshopped on the cover of Vanity Fair. We're guessing Mariah Carey has something to say on the topic. [INO]

• Starlets stripping down to fight global poverty. [Yeeeah]

• We could have gone our whole lives without hearing about Seth Rogen's shaving habits. [ICYDK]

• Oops, Victoria Beckham forgot her pants! [PS]

So here I am, sitting in my living room suffering through an episode of Real Chance of Love (it's all for the good of Reality Bytes!) when Michael Phelps slides across my screen with no pants à la Tom Cruise in Risky Business. There is a Xenu!

Upon further investigating, I discovered that he was picked up alongside Kobe Bryant, Tony Hawk and Mr. Madonna himself, Alex Rodriguez, to promote the new Guitar Hero: World Tour. Out of all the ridiculous commercials Michael's starred in since the Olympics, this one is by far the best. (And, admittedly, most disturbing.)

IN INAPPROPRIATE CELEBRITY ENDORSEMENT NEWS "Microsoft’s new $300 million advertising campaign has been kept tightly underwraps but word has spread that Jerry Seinfeld will be one of the key celebrity pitchmen. The Wall Street Journal reports that Seinfeld will appear with Microsoft Chairman Bill Gates in ads and receive about $10 million for the work. The new ad effort is expected to use some form of the slogan 'Windows, Not Walls,' several people familiar with the matter told the Journal. The campaign, said to debut Sept. 4, is one of the largest in the company's history."