Andy Gibb and Victoria Principal are known for their brief musical collaboration in the late 1970s. Gibb, a British singer-songwriter and the youngest brother of the Bee Gees, was celebrated for his pop and disco style, while Principal, an American actress, was largely known for her role in the TV series 'Dallas.' They recorded a duet, "All I Have To Do Is Dream," a cover of the Everly Brothers' classic, which exemplified Gibb's distinct falsetto and Principal's warm, expressive voice. Despite their short-lived musical partnership, their duet remains a notable moment in late 1970s pop culture.