Stewart sang background vocals, played keyboards, synthesizer and piano for Nicks' second solo album The Wild Heart, released in 1983.
Stewart was credited on The Wild Heart and posed with backing vocalists Sharon Celani and Lori Perry for the album's photos.
In 1985, Stewart recorded a duet, "This Is Your Day", with Nile Rodgers for the soundtrack of the film White Nights, starring Mikhail Baryshnikov and Gregory Hines.
Produced by Arif Mardin and John Brand it was originally intended to be Stewart's second solo album but instead ended up as a 'band' project co-credited to her and David Munday.
In January 2014, Nicks performed the song in the opening of the season finale of the hit show, American Horror Story: Coven.
Stewart cowrote with David Munday or Rick Nowels in the 80's and 90's for acts including Fiona, Then Jerico, Gregg Alexander, Kim Wilde, Faith Hill and Victoria Shaw.