Continuity mistake: In the scene where White She Devil is pursuing Undercover Brother on a motorbike, her helmet changes from one without a visor when the shot is a close-up her face, to a different helmet with a visor when the shot is from further away.
Continuity mistake: When Sistah Girl sneaks into Undercover Brother's apartment, she pushes a gun into his fro. But from a different angle, it's a few inches away from the fro.
Continuity mistake: In the scene where UCB first arrives at "The Brotherhood" the medallion he is wearing changes three times: a lion fang, a small gold disc, and finally when Chubby Brother is showing UCB the modifications to his car the large disc with the fist raised that his father gave him.
Continuity mistake: When Undercover Brother is getting fed the sandwich by White She Devil, the excess mayonnaise drips down onto Undercover Brother. When they get up from the couch, the mayonnaise is nowhere in sight.
Continuity mistake: In the scene where Lance is checking the B.R.O.T.H.E.R.H.O.O.D.'s boss' blood pressure, the cuff is on the boss' arm, then after a quick shot away to someone else the cuff is off his arm, too quickly as the boss and Lance don't appear to have moved.
Answer: "Here We Go" by the boy band, NSYNC.
CCARNI