"Muscles" is a 1982 hit single written and produced by Michael Jackson, and performed by American singer Diana Ross.

It was released as the first single on September 17, 1982, by RCA from Ross's Gold-certified album Silk Electric.

The track featured prominent background vocals by Patti Austin with seasoned session singers Maxine and Julia Waters.

The single's erotic music video featured Ross in bed dreaming of muscular men.

[2] The video features a young Gil Birmingham (The Twilight Saga film series) in one of his first-ever media appearances.