Foo Fighters' Dave Grohl: White Knot for Gay Marriage

Add Foo Fighters frontman Dave Grohl to the list of straight celebrities coming out to support gay marriage.
The singer is one of the first in Hollywood to start wearing a white ribbon as a show of same-sex solidarity.
“Anybody know about whiteknot.org?” Grohl asked on the red carpet at last night’s MusiCares benefit and tribute to Neil Diamond. “You know what that’s about? It's I believe in love and I believe in equality and I believe in marriage equality.”
Rock on, Mr. Grohl!
Meanwhile, could freshman American Idol judge Kara DioGuardi actually be afraid of being on the receiving end of Simon Cowell’s nasty zingers?

DioGuardi says she has no plans to perform “Temporary,” her duet with Nick Lachey from the former Newlyweds star’s upcoming album, on AI anytime soon.
“I think we’ll stick to the contestants,” DioGuardi said with a laugh.
Lachey has said that when he and DioGuardi wrote the song together, she had no plans to be on the final cut. "Initially, just in the studio, we thought, 'All right, let's sing it together and then we'll maybe find someone else to be on it,'” he recently told Access Hollywood. “But she did such a great job on it."
DioGuardi also reiterated her hope that Prince would stop by AI to mentor the young singing hopefuls. Sadly, she doesn’t think she has the juice to convince the Purple One to do it. “I think there are bigger people than me to get Prince, you know what I mean,” she said.
Diamond, who has been a mentor on AI, reminisced about his start in music. “My first guitar was ten dollars,” he told me. “I paid for it a dollar a week because I wasn’t sure I’d like playing guitar. My parents were behind me a hundred percent…I don’t have that guitar. I wish I did. I wish I did.”
Across town, über-producer Timbaland was spewing not-so-nice words about the Grammys. "The Grammys are on Sunday,” he said while performing during the Verizon and BlackBerry party at Boulevard 3. “Y’all excited about all that bulls--t? That's all the Grammys is—bulls--t. For those who are going to the Grammys and for those who are looking for me, I won't be there. Cause it's bulls--t.”
Okeydokey, Mr. Timbaland.
Rihanna also performed a few of her hits for a crowd that included her boyfriend, Chris Brown, Kanye West, Sean “Diddy” Combs, T.I., Twista and Warren G.
Nick, Kevin and Joe Jonas were spotted at a table with a gaggle of pals. But I'm still wondering if Joe was there with rumored-to-be girlfriend Camilla Belle. Perhaps they were hiding in a dark corner, because earlier in the night at the MusiCares shindig, they made sure to keep a very safe distance between them. Belle didn’t even sit at his table.