Brought to you by Desert Diamond: http://ddcaz.com

Demi Lovato has reportedly been hospitalized for a heroin overdose. 

According to TMZ, law enforcement officials say the 25-year-old singer was rushed to a hospital in Los Angeles after she suffered from what appeared to be a heroin overdose.  

The entertainment outlet reports that Lovato, whose condition is not known, was transported from a Hollywood Hills home on Tuesday just before 12 p.m. 

A rep for Lovato did not immediately respond to Fox News' request for comment. 

An LAPD spokesperson told Fox News that the Los Angeles Police and Fire Departments responded to a "medical emergency call" on the 8000 block of Laurel View Drive in the Hollywood Hills neighborhood at 11:40 a.m. However, the spokesperson noted that the "LAPD could not confirm the identity of the individual at the moment.”

Lovato tweeted earlier in the day a promotion for her appearance on the pre-taped Fox show "Beat Shazam" Tuesday night.