The Year in Arrests: 2010
Bruno Mars (Las Vegas, Sept. 18): The Hawaiian singer was arrested for possession of cocaine after being discovered in the Hard Rock Hotel Casino bathroom with 2.5 grams of a "white powdery substance." Mars has pleaded not guilty to the charges and has a scheduled court date of Feb. 4, 2011.

After performing at the Hard Rock Hotel Casino in Las Vegas on Saturday (Sept. 18), singer-songwriter Bruno Mars was arrested early Sunday morning on suspicion of cocaine possession.

According to a report from the Las Vegas Metropolitan Police Department, Mars (real name: Peter Hernandez) was arrested at approximately 1:50 A.M. after hotel security discovered the singer with narcotics and detained him. Mars was found with 2.6 grams of "white powdery substance" believed to be cocaine. He was released at 7:45 A.M. on Sunday after being taken to an area detention center.

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After breaking out with featured vocal turns on B.o.B's "Nothin' on You" and Travie McCoy's "Billionaire" earlier this year, Mars is slated to release his debut album, "Doo-Wops & Hooligans," on Oct. 5 via Elektra Records. First single "Just the Way You Are" is currently at No. 3 on the Hot 100.

The singer posted on his Twitter account before Saturday's concert, "Come see me @ the Hard Rock 2nite!! VEGAS!!" Mars remained silent on Twitter until early this morning (Sept. 20), when we posted that he was in Dallas and "meeting some folks at the radio stations."