According to TMZ, the 45-year-old appears to have suffered an overdose after at around 6 pm on Monday evening. Cops were called to the scene and found X - whose real name is Earl Simmons - unconscious and without a pulse. Sources say the officers were able to revive Simmons with a does of Narcan, a drug that's administered to bring overdose victims back from the brink of death. Simmons was brought to a nearby hospital, where he's currently under surveillance. One witness says the hip hop icon "ingested a white powder" moments before he collapsed. Sadly, Simmons has made more headlines for his troubled personal life than for his music in recent years. He was sentenced to six months in prison last year following a bizarre incident in which he robbed a customer at a gas station. Prior to that, DMX was arrested once for DUI and twice for unrelated traffic offenses, all within less than 18 months. Sources close to Simmons say he is expected to make a full recovery and has regained consciousness since being hospitalized last night.