Music Notes: David Gahan's cancerous tumor removed, Sigur Ros record next album

- The whole Depeche Mode mystery seems to have been solved. After originally being hospitalized for gastroenteritis a couple of weeks ago, resulting in the cancellation of numerous tour dates, David Gahan has undergone surgery to have a cancerous tumor removed from his bladder. Doctors have ordered the singer to rest until June 8, which is when the band will resume their world tour in Leipzig, Germany. [BBC]

- Sigur Ros have been busy in the studio, working on a follow-up to last year's Med Sud I Eyrum Vid Spilum Endalaust. The band members have described the currently untitled album as a mellower, more ambient record than Med Sud... Sigur Ros seem to be aiming for a 2010 release date. [NME]

- Dr. Dre will debut some music from his album Detox in a Dr. Pepper commercial that will begin airing June 1. The album itself is expected to come out late in 2009. [Billboard]

- A little shout out to my college town — New Brunswick, New Jersey's Screaming Females opening for The Dead Weather (Jack White's latest project) in July. [TheDeadWeather.com]

- Vivian Girls will release their sophomore album, Everything Goes Wrong, September 8. [Pitchfork]