New Celebrity Couple Alert in Hollywood

New couples are popping up all over Hollywood and it's hard to keep track, so we've broken down all the latest celebrity couple news for you right here!

• Model Petra Nemcova, 26, was seen leaving a New York City nightclub hand-in-hand with singer James Blunt, 32, but the two are claiming to be just friends. Petra, who lost her boyfriend Simon Atlee in the 2004 tsunami, recently brushed off rumors that she was dating actor Bruce Willis.

• Keira Knightley is dating her Pride and Prejudice co-star Rupert Friend. The two have been seen strolling hand in hand through London since meeting on the set of the film.

• Paris Hilton's former friend Nicole Richie and ex-fiance DJ AM are back on! The two are not talking marriage yet, but are reconciling on the sandy beaches of Mexico, where they were last seen having a little love-fest.

• Elisha Cuthbert, 23, has been dating the LA King's Sean Avery, 26, for about four months. The two were friends for years before deciding to take it to the next level. Avery was linked to model Rachel Hunter back in 2004 and Cuthbert split from fiance Trace Ayala last year.

• Paula Abdul is quietly dating actor Tony Schiena, who she brought as her date to the Kelly Nishimoto fashion show last month. Recent attempts for Paula to find love on the Dr. Phil show were disastrous to say the least.

• Jason Biggs is moving in with his theater actress girlfriend Lindsay Zir. "Cohabitation is upon us..we're going to do the move-in, which is very exciting," Biggs said.