XYZ were a short-lived rock supergroup. The name XYZ is taken from eX-Yes-&-Zeppelin as the group consisted of ex-Led Zeppelin guitarist Jimmy Page, along with ex-Yes members Chris Squire (bass guitar, vocals, keyboards) and Alan White (drums). Their alliance was forged after Squire met Page by chance at a party shortly before Christmas 1980. The group also featured former Greenslade keyboard player and vocalist Dave Lawson Squire was the main writer for the group. Page believed the band needed a strong vocalist and sought out former Led Zeppelin frontman Robert Plant. Plant did attend one XYZ rehearsal on 28 February 1981, but decided not to join the group citing his dislike for the complexity of the music, and because he was still deeply hurt by the recent death of his long-time friend, and Led Zeppelin's drummer, John Bonham.
Without a firm commitment from Plant, and contractual issues on who should manage the group (Peter Grant or Brian Lane), the project was shelved shortly thereafter.