Was this part of the previous medley? No idea, since Aguilera immediately followed Chris Brown but was never introduced. In any event, inviting X-tina to cover James Brown is just playing to her weaknesses. There's no note Aguilera can't turn into 10, and she predictably eradicated the melody while giving us a tour of her range. Going to her knees JB-style, though, earns her a little grade inflation.