American Idol Singers Advantage learn to sing Seth Riggs

See how the stars from American Idol as well as those already famous learn to find the full potential of their voices. Stars like Kelly Clarkson, Stevie Wonder, Ricky Martin, Katharine McPhee, Natalie Cole, Luther Vandross, Prince, Carmen Rasmusen, and the Legendary Ray Charles all have used the SpeechLevel Singing technique (SLS) taught by Seth Riggs.