Robert Jens "Bob" Rock (born 19 April 1954), is a Canadian musician, sound engineer, and record producer best known for producing bands and artists such as The Tragically Hip, Aerosmith, The Cult, Bon Jovi, Mötley Crüe, 311, Metallica, Our Lady Peace, Bryan Adams, The Offspring, Michael Bublé, Black Veil Brides and Ron Sexsmith.