Jamaican vocal duo formed by Bob Andy (Keith Anderson) and Marcia Griffiths who became a member of the I threes backing Bob Marley. The duet reach #5 UK hit single in 1970 with their cover of Nina Simone’s Young, Gifted and Black and a #11 hit in 1971 with Pied Piper. They discontinued their partnership in the mid-1970s, both feeling that it was not bringing them adequate financial reward.