Nick Hogan was working a bikini contest at his father Hulk Hogan's restaurant hours before being arrested for DUI in Florida.
TMZ obtained video from Friday's event at Hogan's Hangout in Clearwater ... and you see Nick working from the DJ booth, playing music and introducing some of the winners.
Hulk was one of the judges, and he was also hosting the bikini contest, which featured $5,000 in cash prizes to three winners .