Roots of Rumer

Raymond Edward O'Sullivan, known professionally as Gilbert O'Sullivan, is an Irish singer-songwriter who achieved his most significant success during the early 1970s with hits including "Alone Again (Naturally)", "Clair" and "Get Down". His songs are often marked by his distinctive percussive piano playing style and observational lyrics using word play.

Terrance James Reid, who was nicknamed Superlungs, was an English musician, songwriter and guitarist, best known for his emotive style of singing in appearances with high-profile musicians as vocalist, supporting act and session musician. As a solo recording and touring artist he released six studio albums and four live albums. Described as an "artists' artist" by Rolling Stone, Reid was recognised by his contemporaries as an eminent talent in English rock music, both as a guitarist and a vocalist. Robert Plant praised his vocal "flexibility, power and control" and Graham Nash was quoted as saying he should have been "a gigantic star".