In 2024, Greenwood was selected for induction into the Rock and Roll Hall of Fame, as a member of Foreigner.

[1] In 1981, Greenwood formed the band Spys with former Foreigner bass player Ed Gagliardi, John Blanco, John Digaudio and Billy Milne and recorded the albums Spys (1982) and Behind Enemy Lines (1983).

[2] Greenwood played keyboards on former Rainbow (and future Yngwie Malmsteen's Rising Force and Deep Purple) frontman Joe Lynn Turner's 1985 debut solo album, Rescue You.

As per an interview conducted by Dominic Milano from Contemporary Keyboard (Keyboard since 1980), and appeared in the April 1979 issue, Greenwood states, "When I first got into Foreigner I had a Hammond L-100 and an EML 101 synthesizer, and I think I had an Orchestron, but that's all been changed.

Now I use a cutdown Hammond B-3, an ARP Omni, and a Wurlitzer electric piano.