PM Dawn "Looking Through Patient Eyes"

PM Dawn's catchy tune "Looking Through Patient Eyes" incorporates the hook from George Michael's "Father Figure" and features Cathy Dennis on backup vocals.

Cathy Dennis "Touch Me (All Night Long)"

Cathy Dennis arrived on the music scene in 1990 with hits like "Just Another Dream" (featuring a guy who sounds remarkably like Rick Astley) followed by the dance club hit "Touch Me (All Night Long)". Years later, Dennis moved into songwriting and is partially responsible for Kylie Minogue's "Can't Get You Out of My Head" and Britney Spears' "Toxic". In 2015, her voice turned up in "Runaway (U & I)" for the EDM group Galantis.

Cathy Dennis - "Just Another Dream"

Let's clear up this mystery: the backup singer in Cathy Dennis' "Just Another Dream" is NOT Rick Astley, but rather Dancin' Danny D (also known as "D Mob").  The song became a hit in 1991 after being released in 1989, re-released in 1990, and then finally catching fire (without the help of Rick Astley) in 1991.  Thank you for your attention to this serious matter.

Cathy Dennis - "Too Many Walls"

The 1990s introduced us to the voice of Cathy Dennis.  She had a handful of hit dance songs at the onset of the decade, but her ballad "Too Many Walls" spent two weeks atop the AC Chart.  There's not much to the song, but the addition of strings throughout the song (and especially at the end) give it its signature sound.