Sean Altman grew up in the Bronx and took violin lessons as a child. He began performing professionally at the age of 17 in a duo called Moon Pudding. While attending Brown University, he sang with a rock band, the Blind Dates, and an a cappella octet, the High Jinks. In 1986, he founded the a cappella group Rockapella, which gained national recognition through the PBS documentary Spike Lee & Co.: Do It A Cappella. The group spent five years as regulars on the children's TV series Where in the World Is Carmen Sandiego?, for which Altman wrote the theme song, and released nine ...