Sellebrity: Madonna's Chopard Knuckles, Caress-ed by The Pussycat Dolls, Matthew Modine Bikes It and More

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Oh, Sellebrity! Whether famous peeps are designing something-or-other or simply lending their faces to sell merch, the celeb/fashion mash-up is sometimes genius, at times hilarious and always on our radar.

1) Madonna: This is what you call serious product placement. Having created a necklace for the pop queen for her 2005 Confessions On A Dance Floor performances, Chopard has stepped up again for Madonna's Hardy Candy album cover, being released April 28. Check the "M-dolla" knuckle ring with "258 brilliant cut white diamonds with a Chopard signature mobile diamond in the flourish of the letter 'M,'" per the press release. How many M-dollas is that worth? [Racked Inbox]

2) Nicole from The Pussycat Dolls: Because who cares what her last name is. First, for a bastardized version of Duran Duran's "Rio," click here. This phonic blasphemy—not even defending Duran Duran here, it's just generally horrendous—was created in the name of Caress Brazilian Oil Infusions Body Wash, per PR Newswire. Watch Nicole in the recording studio with Caress conveniently located behind her, just in case she has to take an emergency shower. [PR Newswire]

3) Lenny Kravitz: More rock star product placement. Gucci's Frida Giannini has designed twenty looks for Kravitz to don for his It Is Time For A Love Revolution tour. WWD reports "Luckily, Giannini's aesthetic dovetails with Kravitz's signature style: included in the clothes she designed will be figure-hugging pants, big belt buckles and fitted jackets." Kravitzian, indeed. [WWD]

4) Matthew Modine: Yes, that's right, Matthew Modine. The guy's been busy being green with his Bicycle For A Day org, which aims to get people out of their cars and onto bikes in the name of the environment. In a related cause, Modine has designed a bicycle messenger bag and a BFAD dog tag for Tumi as part of a "green platform" the luggage brand is launching, per Fashion Week Daily, which includes "pledging to plant 100,000 trees in various reforestation projects overseen by Global ReLeaf" and a direct mail campaign "to over a million ricipients." Uh, paperless anyone? [FWD]

5) Charlotte Gainsbourg: French/British singer/actress, daughter of Jane Birken/Serge Gainsbourg is purported to be tapped by Nicolas Ghesquière to be the next face of Balenciaga, following Jennifer Connelly. Skinny. Snoozfest. [Fashionista]