Hull performed in Las Vegas stage shows with Gene Kelly, Jimmy Durante, Sergio Franchi, and Dick Jensen.

Her first professional recordings as a vocalist were on Mason's 1979 Groovin’ You album,[8] and a duet written and sung with violinist, orchestra leader, multi-instrumentalist and singer, Charles Veal Jr.[9][10] Hull's work as a songwriter and backing vocalist gained momentum during this period, including tours to Japan with Christopher Cross and the East Coast with Boz Scaggs.

Hull has worked with a broad range of top-tier recording artists in different genres, including Anita Baker,[11] Angela Bofill, Peabo Bryson, Christopher Cross, George Duke, Michael Franks, Thelma Houston, Billy Idol, Michael Jackson, The Judds, Wynonna Judd, KC & the Sunshine Band, B.B.

King, Patti LaBelle, Ricky Martin, Diana Ross, Donna Summer, Bob Welch, Quincy Jones, and Vanessa Williams.

A cover version of the song, produced by Peter Bunetta and Rick Chudakoff, was released as a single by Patti LaBelle in December 1984 and nominated for a Grammy Award for Best Female R&B Vocal Performance in 1986.

[15] Partial list: Truth and Tenderness, an album of 10 original songs by Hull, was released on vinyl LP through the Sampony record label in South Korea on November 12, 1991.