Sean Altman is an American musician and songwriter. He is a founder and former lead singer of the singing group Rockapella and a pioneer of the modern a cappella movement. He was a member of Rockapella from its inception in 1986 until he left the group in 1997 to launch a solo career.
As a founding member of Rockapella, Altman became known for his role on the hit PBS Kids game show, Where in the World Is Carmen Sandiego?, on which his band served as the house vocal band and comedy troupe. Altman...
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