Metal Health is the third studio album by the American heavy metal band Quiet Riot, released on February 28, 1983. The album spawned two hit singles: the Slade cover "Cum On Feel the Noize" and "Metal Health". It was the band's first album to receive a worldwide release, as the first two were released only in Japan.
Metal Health was the first heavy metal album to reach number one on the Billboard 200 chart, replacing The Police's Synchronicity at number one in November 1983. Due to its commercial success, Metal Health is regarded by some as the catalyst that opened the door for hair metal's immense popularity throughout the next several years. The album went on to sell more than ten million copies worldwide and over six million in the U.S. alone, being certified six-times platinum by the RIAA.