Mickey Hart (born September 11, 1943) is best known as one of the two drummers from the rock band the Grateful Dead. He and fellow Dead drummer Bill Kreutzmann earned the nickname "the rhythm devils". He joined the Grateful Dead in September 1967, and left in February 1971, after some bad business deals by his father Lenny Hart, who had briefly managed the Dead. During his sabbatical, in 1972, he recorded the album "Rolling Thunder". Wikipedia
The definitive Wikipedia entry for Mickey Hart. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Mickey_Hart