She had already written her first pop hit, "A Groovy Kind of Love", with Toni Wine, while still a student at New York City's High School of Music and Art.
[6] It was recorded by the British invasion band The Mindbenders, whose version was a worldwide hit, reaching number 2 on the Billboard Hot 100.
This song was later recorded by Sonny & Cher, Petula Clark, and Phil Collins, whose rendition for the film Buster reached number one on both the UK Singles Chart and Billboard Hot 100 in 1988.
It included the hit single "You're Moving Out Today", a song which she co-wrote with Bette Midler and Bruce Roberts.
The album also included Bayer Sager's versions of two songs previously recorded by Melissa Manchester – "Home to Myself" and the oft-covered "Come in from the Rain".
It was followed by ...Too in 1978, also produced by Brooks Arthur, which included all-star cameos by the likes of Michael McDonald, Alice Cooper and Manchester.
It also included the first recording of "It's the Falling in Love" which subsequently would be covered by Michael Jackson on his 1979 multi-platinum album Off the Wall.
She also worked with Australian songwriter Peter Allen, crafting hits such as "I'd Rather Leave While I'm in Love" "You and Me (We Wanted It All)" and "Don't Cry Out Loud".
The song was popularized in a 1986 cover version by Dionne Warwick, Stevie Wonder, Gladys Knight and Elton John.
Her song with David Foster, "The Prayer", originally recorded by Celine Dion and Andrea Bocelli, won the Golden Globe, and is often performed at weddings and funerals.
Alongside Bruce Roberts and Kenneth "Babyface" Edmonds, Bayer Sager co-wrote "Stronger Together", sung by Jessica Sanchez.