Bruno Mars

Singer Bruno Mars has more in common with Paris Hilton than a smiley mug shot (seen below) ... because law enforcement sources tell TMZ he was also busted in Las Vegas for possession of cocaine. As we previously reported, Mars was popped at the Hard Rock Hotel & Casino after security confronted…

Popular singer/songwriter Bruno Mars was arrested in Las Vegas early Sunday on suspicion of narcotics possession, this according to the Las Vegas-Review Journal. Mars was busted, the paper reports, after security at the Hard Rock Hotel and Casino confronted him in a bathroom and allegedly found…