The producer's credits feature a who's who of rock stars over the past half-century, including Journey, Yes, The Cars, Cheap Trick, Guns N' Roses & Smashing Pumpkins.

Among the most successful music producers in the 1970s and ’80s, he helped churn out hits for acts like Queen, the Cars, Journey and Foreigner.

Roy Thomas Baker, the English producer who worked with Queen and The Cars in the 1970s and 1980s, has died. He was 78. No cause of death has been announced.