Roots of Katharine McPhee

Kate Victoria "KT" Tunstall is a Scottish singer-songwriter and musician. She first gained attention with a 2004 live solo performance of her song "Black Horse and the Cherry Tree" on Later... with Jools Holland and has subsequently also appeared in two episodes of the comedy series This is Jinsy on Sky Atlantic. In 2025 it was estimated that Tunstall's accumulated record sales totalled seven million. Her accolades include a Q Award, European Border Breakers Award, two Ivor Novello Awards, a UK Music Video Award, and a BRIT Award for Best British Female Artist. Additionally she has been nominated for a Grammy Award, Mercury Prize, World Music Award, and a Hollywood Music in Media Award.

The Four Tops are an American vocal group formed in Detroit, Michigan, in 1953 as the Four Aims. They were one of the most commercially successful American pop music groups of the 1960s and helped propel Motown Records to international fame. The group's repertoire has incorporated elements of soul, R&B, disco, adult contemporary, doo-wop, jazz, and show tunes. Lead singer Levi Stubbs, along with backing vocalists Abdul "Duke" Fakir, Renaldo "Obie" Benson and Lawrence Payton remained together in the group for more than four decades, performing until 1997 without a change in personnel. Along with fellow Motown groups the Miracles, the Marvelettes, Martha and the Vandellas, the Temptations, and the Supremes, the Four Tops helped to establish the "Motown sound"; pop-friendly soul and R&B with a clean, polished production quality. They were notable for having Stubbs, a baritone, as their lead singer, whereas most other male and mixed vocal groups of the time were fronted by tenors.

Ephraim Elliott Yamin is an American singer known for his hit single "Wait for You" and for placing third on the fifth season of American Idol.