DJ Makes Diddy Baby Oil 'Joke' in Club During Landon Barker's 21st Birthday | TMZ Live

At Harriet's, Landon reportedly ordered bottle service -- and the DJ at the joint sent out servers carrying bottles of baby oil with flashing lights inside ... a clear reference to the federal government's claim more than 1,000 bottles of baby oil were found in raids of Diddy's homes earlier this year.

We're told one of the servers tried to hand Landon a bottle of baby oil, which he refused.