Eastown Theatre was a 2,500-seat theater located at 8041 Harper on the east side of Detroit, Michigan. Opening in 1931, it operated as a movie theater until being converted into a rock music venue in 1967. Performers included Alice Cooper, Emerson, Lake and Palmer, Faces, Fleetwood Mac, Grateful Dead, Steppenwolf, Cream, Pink Floyd, The Amboy D…Eastown Theatre was a 2,500-seat theater located at 8041 Harper on the east side of Detroit, Michigan. Opening in 1931, it operated as a movie theater until being converted into a rock music venue in 1967. Performers included Alice Cooper, Emerson, Lake and Palmer, Faces, Fleetwood Mac, Grateful Dead, Steppenwolf, Cream, Pink Floyd, The Amboy Dukes and Yes.