Daniel Hans Erwin Zimmermann (born 30 October 1966 in Nürnberg, West Germany)^[1] is a retired German heavy metal drummer. He is best known as having been the drummer of German power metal bands Gamma Ray^[2] and Freedom Call.^[3] He was a founding member of Freedom Call, from which he departed in 2010.^[4] Two years later he also left Gamma Ray, announcing a retirement from the music business in 2012.^[5]

Freedom Call celebrated their 20th anniversary and release of M.E.T.A.L, their tenth studio album, on tour.^[6] The new album featured a reprise of Zimmermann's drumming on the title song.^[7]

• Valley of the Kings (1997)
• Somewhere Out In Space (1997)
• The Karaoke Album (1997) - Karaoke Compilation album
• Power Plant (1999)
• Blast from the Past (2000) - "Best of" Compilation album
• No World Order (2001)
• Skeletons in the Closet (2003)
• Majestic (2005)
• Land of the Free II (2007)
• Hell Yeah! The Awesome Foursome (2008)
• To The Metal (2010)
• Skeletons & Majesties (EP) (2011)
• Skeletons & Majesties Live (2012)
• The Best (Of) (2015)

• Stairway To Fairyland (1999)
• Taragon EP (1999)
• Crystal Empire (2001)
• Eternity (2002)
• Live Invasion (2004)
• The Circle of Life (2005)
• Dimensions (2007)
• Legend of the Shadowking (2010)
• Ages of Light 1998-2013 (2013)

• Under A Different Sun (1995)

• Saitenfeue (1997)

• Lenny Wolf (1999)

• Coming Home (single) (1998)
• Unification (1999)

• Profile on official Gamma Ray website