Christopher Cross "All Right"

SCTV famously spoofed Michael McDonald (played by Rick Moranis) driving across Los Angeles in order to make it to a sound studio to record background vocals on Christopher Crosses "Ride Like The Wind". It's funny because it's true. McDonald again appeared on Crosses 1983 hit "All Right".

Lionel Richie "Running with the Night"

Richard Marx owes Lionel Richie a beer or two for helping launch his career. Marx provided backup vocals for a handful of Lionel's tunes including "Running with the Night" in 1983. After Marx became a household name (and a staple of Adult Contemporary radio), Lionel appeared as a background vocalist on "The Way She Loves Me".