Photo credit: Public domain, distributed by Atlantic Records (via Wikimedia Commons, cropped) – Genesis embraced their sensitive side with this 1978 hit.
Photo credit: screenshot from BeeGees FanTubin’ YouTube channel – The Bee Gees performed an incredible a cappella version of "How Deep Is Your Love" in 1998.
Photo credit: Gentle Giant YouTube (Derek Shulman), Elton John YouTube (Elton John) – Elton John didn't remember writing this track, until a former bandmate surprised him with a demo recording.