August Alsina: I’m Not Going Onstage Without Popeyes

August Alsina’s not getting onstage unless he gets $60k ... and a feast.

We got hold of the rider for the New Orleans R&B crooner, and he's got food on the brain. His dressing room becomes a backdrop for a banquet ...

-- 20 pieces of hot Popeyes chicken
-- red beans and rice
-- jalapeno peppers
-- biscuits, mashed potatoes with gravy

The dressing room is also well stocked with booze ...

-- 2 Hennessy
-- 1 Cabernet
-- 1 Honey Jack Daniels
-- 1 Patron
-- 1 case of Bud Light

August also takes care of his 20-person crew. They get ...

-- 12 Rib-eye steaks
-- 24 sauteed prawns
-- 24 fried prawns
-- baked lobster mac & cheese
-- collard greens
-- peach cobbler
-- apple pie