Singer Leona Lewis says she was shocked by the alleged attack. Also, what is director Roman Polanski up to these days in prison? He's still working on a film. Find out more in The Buzz:

Just when the Mackenzie Phillips "I-had-sex-with-my-father" story was beginning to cool off we've been hit with another spate of cringe-worthy entertainment news.

First it was Roman Polanski's arrest in Switzerland, which brought back up all the sordid details of his 1977 rape case involving a 13-year-old girl.  To read her original grand jury testimony is beyond disturbing.  Regardless of whether you think the famed director should be extradited to the U.S. or left alone due to his age, etc., what he is accused of doing is absolutely shocking. 

Then last night David Letterman dropped his sex and extortion bombshell on "The Late Show".  He acknowledged having affairs with female staffers, information a CBS employee allegedly threatened to bring to light unless Letterman paid him off.

Now, Americans love a sex scandal.   Washington has provided plenty of them (courtesy of senators John Ensign, David Vitter, former senators John Edwards and Larry Craig, oh and former Pres. Clinton, to name but a few).  Maybe Hollywood is just playing catch up.

But enough already!  It's time to take down the dirty laundry before disgust turns into nausea and nausea turns into... well, something really difficult to clean up.

When we cover an event in Hollywood, sometimes we are tasked with asking celebrities questions about much more than just the event they're attending or their latest project.  This week we've been asking folks their take on Roman Polanski, who was arrested Saturday in Switzerland on a warrant relating to 1977 child sex charges. He admitted to having sex with a 13 year old girl but fled the country before his sentencing.

A petition signed by such Hollywood notables as Martin Scorsese, Pedro Almodovar, David Lynch, Jonathan Demme, John Landis and Tilda Swinton which urges Polanski's release has enraged many people who feel he should not be getting a pass. It's one thing to sign a petition and many of the celebrities we posed the Polanski question to demurred, but some were willing to share their opinions on camera. 

Allison Sweeney, host of NBC's "The Biggest Loser," Jillian Michaels a trainer on the show, Tom Morello of "Rage Against the Machine," actress Lisa Kudrow, and Patricia Arquette star of  "Medium" tackled the question.

Roman Polanski's got friends in high places.  Whether they can really burnish his image is another matter.

Woody Allen, Martin Scorsese, David Lynch and Oscar-winning actress Tilda Swinton are among the showbiz luminaries who have signed a petition demanding Polanski's release. 

The famed director was picked up in Zurich, Switzerland on Saturday and faces possible extradition to the U.S. on a child sex case that dates back to 1977.

I can see some value in having Scorsese and Swinton in your corner, but Woody Allen?  He faced a sex scandal of his own involving the adopted daughter of his former partner, Mia Farrow.

Actor/writer Buck Henry and director John Landis  also signed the petition.  Landis was charged (and later acquitted) of involuntary manslaughter years ago in the deaths of two child actors on the set of the movie, "Twilight Zone".

As for Henry, fans of  "Saturday Night Live's" early years will recall he played a recurring character on the show, a cheesy pedophile named Uncle Roy who was always trying to get two girls (played by Gilda Radner and Lorraine Newman) to pose for Polaroid shots.

Do you think these are good candidates to speak out on Polanski's behalf?