Jani Lane, the lead singer of the popular glam band Warrant, was found dead in a Los Angeles hotel room Thursday.

The fire department discovered Lane's body after responding to a call just after 5:30 p.m., E! News reported. The case has been handed over to the Los Angeles coroner's office, and no cause of death has been announced.

Lane, 47, fronted the Hollywood-based hair glam rock band Warrant, which formed in 1989 and peaked in popularity shortly thereafter. Warrant's first album "Dirty Rotten Filthy Stinking Rich" ranked at number ten on the Billboard 200. It's most popular single, "Heaven," reached number two on the Billboard chart.

Warrant's follow-up album with the titular single, "Cherry Pie," was even more successful, but the band waned in popularity in the early 90s, due primarily to internal conflicts and the emergence of grunge rock.

Lane struggled with alcohol in the years leading up to his death, and had two DUI charges in 2009 and 2010.

Some of Lane's former peers (and rivals) have taken to Twitter to mourn his death.

Poison frontman Bret Michaels tweeted, "We'd like to offer our deepest condolences to the family of Jani Lane regarding their loss." Mötley Crüe's Nikki Sixx wrote, "I just heard the sad news about Janie (sic) Lane. So hard to swallow when people have kids. RIP."

Guns 'n' Roses guitarist Slash posted message on his blog, "Just heard about Jani Lane. What a shame. RIP man."

Lane leaves behind his third wife and four children.