Seth Riggs (born September 19, 1930)[1][2][3] is an American singer, actor, and vocal coach.

[4][5] He has created the vocal technique "Speech Level Singing",[6] and has worked with performers such as Prince, Michael Jackson,[7][6] Stevie Wonder,[6] José José, Ray Charles, George Michael, Olivia Newton-John, Madonna,[6] Janet Jackson, Johnny Hallyday, Sohyang, AGNEZ MO, Bette Midler,[6] Julio Iglesias[6] and Barbra Streisand.

Riggs started singing when he was about 7 years old, and joined the Washington National Cathedral Boys' Choir as a 9-year-old.

[12] Riggs studied voice with teachers including American baritone John Charles Thomas and Italian tenor Tito Schipa,[11] and in New York City with Keith Davis who was at the time teaching the majority of singers on Broadway.

[13][14] Riggs created SLS that blended singers’ head voice and chest voice while applying SLS (speech level singing) techniques that benefited Michael Jackson, Prince, Stevie Wonder, Madonna, Barbra Streisand, and numerous others.