As if their baby names weren’t bad enough, Nick Cannon has had them emblazoned on a tacky four-carat diamond and pink sapphire necklace for wife Mariah Carey. In celebration of her first Mother’s Day shortly after giving birth to twins Moroccan and Monroe, Cannon bestowed Mariah with the $12,000 piece of nameplate jewelry. He had the necklace fashioned by up-scale jeweler Jason of Beverly Hills. They named their daughter Monroe after Marilyn Monroe and their son Moroccan after the top tier of Mariah’s New York City apartment, which is called the Moroccan Room.

GAGA AND BOYFRIEND SPLIT!

Consider it a Bad Romance. Lady Gaga has broken up with her boyfriend, musician and bartender Luc Carl. The singer announced the split last Thursday on England’s The Graham Norton Show. “I don’t have a boyfriend and haven’t been on any dates recently,” the 25-year-old said. The couple had split several years ago before getting back together in July 2010.

Charlie Sheen had some harsh words for Ashton Kutcher, his newly announced replacement on Two and a Half Men. "Enjoy the show America. Enjoy seeing a 2.0 in the demo every Monday, WB,” Sheen said.  He also told TMZ, "Kutcher is a sweetheart and a brilliant comedic performer ... Oh wait, so am I!!" In a statement released Friday, Kutcher said, “I can't replace Charlie Sheen but I'm going to work my ass off to entertain the hell out of people!" TMZ reported that Kutcher will be making considerably less than Sheen’s $1.25 base salary. He’ll likely be making between $800,000 and $900,000 an episode.

DANCING’S KYM TO DANCE DESPITE NECK INJURY!

Dancing with the Stars hoofer Kym Johnson is expected to compete tonight, despite suffering a neck injury Friday. Johnson reportedly took a nasty spill during rehearsal with partner Hines Ward and was rushed to Cedars-Sinai Medical Center by ambulance. She was checked out and later released, and, according to a statement by DWTS she was feeling “bruised and sore.” But on Saturday, Kym sounded like she was doing okay, tweeting, "I'm feeling better today and I am so happy my Mom is here with me” and by Sunday she was cleared to return to the ABC show.