R&B singer Gerald Levert died today (Nov. 10), after suffering a fatal heart attack. Levert, also known as “G-Bear” to his fans, is featured on Styles P upcoming album Time Is Money.

He was 40-years-old. The R&B singer was working on a reality show that featured him losing weight along with 12 of his female fans, who lived and trained with Levert for 30 days.

Gerald Levert comes from a legendary musical family. His father Eddie Levert is the lead singer of the O’Jays.

Levert scored pop success as a member of the R&B group Levert and as a member of LSG (Levert, Keith Sweat and Johnny Gill).

He later hit big with singles like “Casanova,” “Pop, Pop, Pop, Pop (Goes My Mind)”, “Mr. Too Damn Good to You” and others.