Rapper Heavy D died today after being rushed to a Los Angeles hospital. He was 44 years old. His cause of death was not immediately known.

Heavy D, born Dwight Arrington Myers, was one of the most influential rappers of the 1990s. He was the leader of the hip-hop trio Heavy D & the Boyz, which gained mainstream fame for the theme song for the TV show “In Living Color.” (The song was first “In Living Color,” Heavy D & the Boyz later recorded a new theme, “Cause That’s the Way You Livin’ When You’re in Living Color.”) Heavy D also rapped on Michael Jackson’s “Jam” and Janet Jackson’s “Alright.”

In recent years, Heavy D focused more on TV and movie appearances. He made a cameo in Eddie Murphy and Ben Stiller’s new film, “Tower Heist.” Heavy D performed at October’s BET Awards, his first live performance in 15 years.

In pop culture, Heavy D is also remembered for his mention in the Notorious B.I.G.’s 1994 hit single “Juicy” with the lyric “Salt’n'Pepa and Heavy D up in the limousine.”