Psy to unveil new song

Plus: Osbourne confirms seizure; Bruno Mars tops Billboard 200; Moore asks alimony from Kutcher; Simpson expecting baby boy.

South Korean rapper Psy to unveil a new song in April. Lee Jin-man / AP Photo

Psy to unveil new song

The South Korean rapper Psy says he'll unveil his much-awaited follow-up to Gangnam Style on April 13 and celebrate it with a huge concert in Seoul. He made the announcement on Friday on YouTube, where his Gangnam Style video has a record 1.4 billion views. He's dubbed the concert Happening and says it will be broadcast live on YouTube. Psy recently released a Gangnam Style remix and performed at the inauguration ceremony for South Korea's new president. – AP

Osbourne confirms seizure

Kelly Osbourne says she had a seizure and doctors are trying to figure out why. The 28-year-old posted a photo on Twitter on Thursday of an IV in her left arm. She thanked her fans for their "beautiful well wishes". Osbourne was hospitalised on Thursday after collapsing on the set of the E! network's Fashion Police, which she co-hosts. Osbourne was recording an episode of her show alongside Joan and Melissa Rivers, who was standing in for Giuliana Rancic. – AP

Bruno Mars tops Billboard 200

Bruno Mars grabbed the top spot on this week's Billboard 200 album chart for the first time, after discounted online prices boosted sales of Unorthodox Jukebox four months after its release. Billboard said 64,000 units of the album were digital downloads following a one-day sale of US$1.99 (Dh7) on Amazon.com. Atoms for Peace, fronted by Radiohead's Thom Yorke, claimed the second spot with their debut album Amok. Mumford & Sons' Grammy-winning album Babel fell from the top spot last week into third. On the digital songs chart, Macklemore & Ryan Lewis' cheeky rap Thrift Shop held at No 1 for the eighth consecutive week. Mars' When I Was Your Man placed second, trading spots from last week with the viral hit Harlem Shake by Baauer, who came in third. – Reuters

Moore asks alimony from Kutcher

Demi Moore is seeking alimony from Ashton Kutcher, according to divorce documents on Thursday. Kutcher filed for divorce from the actress in December 2012. Requesting financial support from Kutcher is an unusual move for Moore, who was one of the top female earners in Hollywood during the 1990s. Her court filing did not specify an amount sought. Kutcher, 35, and Moore, 50, both cited irreconcilable differences in their divorce papers. In Kutcher's filing, the actor said he would not deny support to Moore. Kutcher was 2012's highest-paid television actor, according to Forbes magazine. – Reuters

Simpson expecting baby boy

It will be a boy for Jessica Simpson and fiance Eric Johnson. Simpson revealed on Jimmy Kimmel Live! that she is expecting a baby boy. She and Johnson are already parents of a daughter, Maxwell, who was born in May. Simpson announced in December that Maxwell would be a big sister, but she hadn't revealed the sex of her new baby. – AP