Singer-songwriter Bruno Mars was arrested early Sunday morning in Las Vegas for suspicion of possession of a controlled substance, the Associated Press reports. Mars, whose real name is Peter Hernandez, was found with 2.6 grams of cocaine in a Vegas resort bathroom. The singer faces possible felony charges.

Hernandez, whose song 'Just the Way You Are' is currently No. 3 on the Billboard Hot 100 chart, was arrested after being detained at the Hard Rock Hotel & Casino. He had performed Saturday night at the Hard Rock's Wasted Space nightclub.

According to the police report, after Hernandez spent an extended amount of time in a bathroom stall, a bathroom attendant alerted hotel security. When he left the stall, he was approached by a security guard and asked to hand over any narcotics he had. Hernandez handed over a bag of cocaine from his jeans pocket.