By Annie Barrett
March 05, 2009 at 03:45 PM EST

Relapse, Eminem’s first original studio album in over four years, will be released on May 19, he announced today. The rapper is already working on a follow-up album, Relapse 2, projected to drop in the second half of 2009. “A lot of people were expecting Relapse to drop last year,” said Eminem. “I was one of them. Then [Dr.] Dre and I went back in the studio in September for a few days, and that turned into six months. We were on such a roll; we wound up with a ton of new music…Putting out Relapse 2 will let everyone get all of the best stuff.”