The "Blurred Lines" singer partied Monday night at West Hollywood hot spot DBA alongside a group of guy friends, which included Leonardo DiCaprio, who's a regular at the joint.
Thicke and his party enjoyed cocktails inside the club, including tequila drinks and Amstel Lights, according to a source. There were no women in their private booth as it was strictly a boys' night only. After partying, Thicke left the club early this morning and was all smiles while driving away.
Also at DBA last night was Dave Chappelle and Trey Songz, who performed.
Thicke and Patton separated two weeks ago after nearly nine years of marriage. "We will always love each other and be best friends; however, we have mutually decided to separate at this time," the pair said in a joint statement at the time.
They have one son together, Julian, 3.
Since news of the split broke, Thicke has been vocal about not wanting to give up on their marriage. He's been recorded admitting he's "trying to get his girl back" despite no real signs of a reconciliation.
—Reporting by Sara Kitnick