Ronald Warren Anderson (February 4, 1946 – December 19, 2021) was an American vocal coach and opera singer,[1][2] best known for teaching vocals to various famous singers, most notably Axl Rose,[3] Chris Cornell, M. Shadows,[4][5] Myles Kennedy,[6] Ozzy Osbourne, Matt Heafy,[7] Seal, Alicia Keys, Tom Cruise, Mary J. Blige,[8][9] Lenny Kravitz, Neil Diamond,[10] Adele, The Weeknd,[11] Joss Stone, Red Hot Chili Peppers,[12] Tom Keifer,[13] Hayley Williams, Christina Perri, Lzzy Hale,[14] Janet Jackson, Avril Lavigne, Timothy B. Schmit, Nancy Wilson,[2] Diego Boneta,[15][16][17] Five for Fighting,[18] and Björk.

[19] After his family moved to Long Beach, California, at the age of 7 he started performing on a local radio program.

[20] Anderson performed in a number of local choirs, as well as singing with Roger Wagner Chorale and The Young Americans.

Throat specialists determined that the only chance to heal his voice was to avoid all vocal production, no singing, no talking for an indefinite time.

[13] In 2012 Anderson prepared Tom Cruise for his role as Stacee Jaxx in the musical film Rock of Ages.