Anticipation for Relapsehas been building since fall 2008, when Eminemfirst announced the album title and debuted the freestyle, "I'm Having a Relapse," during an interview on his Shade 45satellite radio station. The release of "Crack a Bottle" from Eminem, Dr. Dreand 50 Centbrought that anticipation to a head. The track soared to #1 on the BillboardHot 100 (Eminem's second #1after 2002's "Lose Yourself") and set a Nielsen SoundScan record for opening week download sales (418,000). The recording ranked third in the history of all weekly download sales. "Crack a Bottle" will be included as an album track on Relapse. With the announcement of the release date for Relapsealso came confirmation of something that had been rumored for weeks: Eminem is already working on a follow-up album, Relapse 2, that fans can expect in the second half of 2009. "A lot of people were expecting Relapseto drop last year," said Eminem. "I was one of them. Then 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 produced by Dre. Putting out Relapse 2will let everyone get all of the best stuff."