Ian McLagan, the British keyboardist who was a member of both the Small Faces and the Faces, is in critical condition in an Austin hospital.

UPDATE: Sadly, McLagan has passed away, reportedly after suffering a massive stroke.

KXAN reports that the legendary musician, a longtime sideman with the Rolling Stones, was admitted, but no other details are known at this time.

McLagan, 69, started his professional career in 1965, when he joined the Small Faces. In 1969, when Steve Marriott left the band and Rod Stewart and Ron Wood joined, McLagan stayed on as the group rechristened itself the Faces.

When they broke up in 1975, McLagan joined his old bandmate Wood in the Rolling Stones, becoming their touring keyboardist. He also played on a few Stones recordings, including the electric piano on 'Miss You.'

Over the years, he's played with artists ranging from Chuck Berry and Jackson Browne to Bob Dylan and Bruce Springsteen. He has also led his own Bump Band, which is based in McLagan's adopted home of Austin, and has released several solo albums since the late '70s.