Hugh Hefner & Son Attend The MusiCares Person of the Year Tribute

Playboy founder Hugh Hefner was photographed with his youngest son Cooper, 20, as they attended the 2012 MusiCares Person of the Year Tribute at the Los Angeles Convention Center in Los Angeles, Calif. on Friday (February 10).

Cooper also recently tweeted a pic of himself and his famous father at the night's event with the caption, "A picture of dad and I last night from the Musicares event."

It seems Cooper's younger brother Marston has gotten himself in some alleged hot water.

The 21-year-old was arrested on Sunday night for allegedly assaulting Playboy Playmate Claire Sinclair.

E! Online reports that that shortly before 11 p.m., police officials were called to the couple's Pasadena home after receiving a domestic-violence call.

According to the police, Claire suffered minor injuries and Marston was taken into custody without incident. He was charged with battery on a spouse (which can apply to cohabitants under state law, though the two are not married) and released a few hours later after posting a $20,000 bail.