William "Bill" Thomas Berry is a retired American musician, multi-instrumentalist, best known as the drummer for the alternative rock band REM.



In 1995, at the Patinoire Auditorium in Lausanne, Switzerland, Berry collapsed on stage during an R.E.M. show from a brain aneurysm. He recovered and rejoined the band, but left in October 1997, saying that he no longer had the drive or enjoyment level to be in the band, and that he wanted a career change.



Bill Berry was not followed up officially until January 2005, when ex-Ministry drummer Bill Rieflin joined the fold as an official member.



Bill Berry rejoind R.E.M. for a special show on the wedding of one of the band's road crew in October 2005. A few hundred lucky wedding guests got the surprise of their life as R.E.M.'s original four members reunited to play a seven-song set at the wedding.



It was the first time the classic line-up performed together since a concert in Raleigh, North Carolina, during the 'In Time' tour in 2003 when Bill Berry made a guest appearance.



Bill Berry has had several brief reunions with his former bandmates, including performances in September 2006 at the band's induction into the Georgia Music Hall of Fame (as well as an appearance at an R.E.M. tribute night at the 40 Watt Club in Athens a few days before the induction) and in March 2007 at the induction into the Rock and Roll Hall of Fame. Bill also played drums and sang on R.E.M.'s cover of "#9 Dream", a John Lennon cover recorded to benefit Darfur.



Bill Berry's musical activities after leaving R.E.M. have been sporadic, but did include recording for the Tourette Syndrome Charity Album Welcome Companions in 2000.