Seth Riggs (born 1930)is an American singer, actor, and vocal coach. He has created the vocal technique "Speech Level Singing" and has worked with performers such as Prince, Michael Jackson, Stevie Wonder, José José, Ray Charles, Madonna, Cristian Castro, Johnny Hallyday, Sohyang, AGNEZ MO and Barbra Streisand. Riggs started singing when he was about 7 years old, joining his neighborhood choir. He has been a vocal coach since 1949, serving in the Navy as a gunner. He also conducts workshops and masterclasses around the world together with his wife, Margareta Svensson Riggs.