Bust it baby. Ester Dean grabs the king of the strip club, Juicy J, for the remix to her booty-bouncing banger “Twerkin 4 Birkin.” The singer-songwriter, who co-wrote Nicki Minaj’s “Pills N Potions,” salutes the women who “pop coochie” for designer bags, while Juicy J encourages the ladies to “work that ass overtime.”