0
Yoso
Yoso
American rock supergroup
1
Conspiracy
Conspiracy
band
2
Yes
Yes
English rock band
3
Tony Kaye
Tony Kaye
English rock musician
4
Alan White
Alan White
English rock drummer
5
XYZ
XYZ
rock supergroup
6
Chris Squire
Chris Squire
British bass guitarist and songwriter
7
Peter Banks
Peter Banks
British musician
8
Anderson Bruford Wakeman Howe
Anderson Bruford Wakeman Howe
British rock band
9
Hurricane
Hurricane
1980s heavy metal band
10
Trevor Rabin
Trevor Rabin
South African-born musician, singer-songwriter, producer, and film score composer
11
Asia
Asia
English rock band
12
Guy Allison
Guy Allison
American composer, pianist, and producer
13
Bill Bruford
Bill Bruford
English drummer
14
Gary Husband
Gary Husband
British musician
15
Jon Anderson
Jon Anderson
English singer

Circa (stylized as CIRCA:) is a progressive rock supergroup founded by four musicians associated with Yes: current Yes member Alan White (drums), former Yes member Tony Kaye (Hammond, keyboards), current Yes member Billy Sherwood (vocals, bass guitar), and guitarist Jimmy Haun, who played on the Yes album Union.

Since 2012, the lineup has consisted of Sherwood (vocals, guitar), Kaye (keyboards), Rick Tierney (bass guitar), and Scott Connor (drums).