3 albums

The group 3 (sometimes referred to as Emerson, Berry & Palmer) were a short-lived progressive rock band formed by former Emerson, Lake & Palmer members Keith Emerson and Carl Palmer and American multi-instrumentalist Robert Berry in 1988. After one album, To the Power of Three, 3 split up. Emerson & Palmer reunited with Greg Lake for 1992's Black Moon and Berry would form Alliance. They performed live, as "Emerson and Palmer" (Berry was onstage but unnamed), at the Atlantic Records... [more on Wikipedia]