That's Entertainment arranged by Greg Gilpin. Choir Secular. For SATB choir (SATB choir). Choral Octavo. Choral Octavo. Choral and Broadway. Octavo. 12 pages. Published by Alfred Music (AP.25196).
It's the quintessential "show business" song, a real showstopper so spectacular that it was used as the theme of MGM Studios' motion picture tribute to the great American Hollywood musicals. And the lyrics! Can they get any better than this? This arrangement includes additional verses which can be used as a "closer" performance.