Okay. My best guess about Taylor Momsen's kohl-smudged descent into "the dark side" (at least, as dark as a 19-year-old television actress in a totally like, "XXhardXcoreXX" rock band can get) is that Gossip Girl costume designer Eric Daman put one too many hair extension tracks onto her head and it snapped her cerebral…

In a recent interview with Elle, Taylor Momsen spoke about her "budding" musical career (in which she often flashes her breasts onstage) and mentioned in passing that she "quit" acting:

[London, July 3. Image via Bauer-Griffin.]

Following the birth of her son, Skyler Morrison, Rachel Zoe has been given a $250,000 push present by her husband, Rodger Berman. It's a ring. Not just any ring. A 10 carat cushion-cut Neil Lane diamond. The perfect piece to wear while dealing with poopy diapers. [Radar Online]

[Paris, March 26. Image via Bauer-Griffin.]

• Star claims that Victoria Beckham is having a fourth child on the proviso that American Vogue will photograph her while she's up the duff. Beckham has been featured on and in virtually every other ladymag, but Vogue has eluded her.

• A.J. McLean of the Backstreet Boys has entered rehab for the third time. Sources say he's been "out of control" recently, and it's been interfering with plans for the band's tour with New Kids On The Block.

• Ann Taylor replaced Heidi Klum with Katie Holmes for the spring season. The brand says it sought Holmes, who's also modeled for J. Crew and been the face of Miu Miu, for "her intellect, kindness and enduring personal style." [WWD]

• This new French L'Oréal ad is like celebrity spokesmodel whack-a-mole. We spy Beyoncé, Patrick Dempsey, Jessica Alba, Freida Pinto, Claudia Schiffer, Rachel Weisz, and Jane Fonda... It's funny to watch them all say, "Parce que vous le valez bien." [YouTube]