You know who it is nowOh boy, oh boyI'm not your substitute numberOh noSaid boy, oh boyI'm not your substitute numberOh noI know it would've been niceIf I could've had your bodyKnowing that everybodyAin't been with youBut you told me liesYou made me give my heart awayBut now I know the games you playSo I'm through with youOh boy, oh boyI'm not your substitute numberOh noSaid boy, oh boyI'm not your substitute numberOh noYou know there's gonna be a fightIf these chicks keep calling you at nightI seen that text you're trying to hideBut see I know the truthMust be out of your mindYou thought you'd never see the dayYou thought I'd let her play your playBut I'ma upgrade youListen boy, oh boyI'm not your substitute numberOh noSaid boy, oh boyI'm not your substitute numberOh noCause see there's not much you can sayThis daily done changeTill I finish todayCause I can't do it no moreI won't be there when you callSo you better move on, move onCause I couldn't be on your sideSaid you no more, no, no, no, noNo, no, no, listen, listen, no, listenI said you can't call my name like I'm going out of fashionThen turn around and act like nothing ain't happening likeNo, nothing's cracking, only when you need a chickOnly when you think about this hotness you get itchThat's when you get the itch, baby, let me be your bitchBoy, I hear you think it is bad, girl, now take thisActing like a little boy, play me like a decoyYou need to grow a couple boys, you ain't got no boyBoy, I'm not your substitute, I'm notOh, no, no, no, no, no, noOh, boy, if you're sick of these dudesTry to cheat, I can suffer tooLadies, if you're through with us, I know what you're sayingOh, no, no, no, no, no, noOh, boy, oh, boyI'm not your substitute, I'm notOh, noOh, boy, oh, boyI'm not your substitute, I'm notOh, noOh, no, no, no, no, no, no