Better watch your back This is a warning Oh, I rarely behave (Oh, I rarely behave) Got it all, I'm triple threat Oh darling, you should watch what you say (You should watch what you say) Ooh-oooh, hey-hey, I'm looking good aren't I? Ooh-oooh, What you say? Ooh-oooh, hey-hey, I'm looking good aren't I? Ooh-oooh, Be afraid I'm your girlfriend's nightmare Your boyfriend's dream Be your best friend Turn around and I'm your enemy I'm your girlfriend's nightmare Your boyfriend's dream I said don't mess with me I said don't mess with me I know their talking shit But I don't care, I've heard it all They say that I'm an.... (ah) and I just.... (oh), it's not my fault I don't go running to 'em They come to me instead Sometimes I even phone/boot 'em Because they can't give Ooh-oooh, hey-hey, I'm looking good aren't I? Ooh-oooh, What you say? Ooh-oooh, hey-hey, I'm looking good aren't I? Ooh-oooh, Be afraid I'm your girlfriend's nightmare Your boyfriend's dream Be your best friend Turn around and I'm your enemy I'm your girlfriend's nightmare Your boyfriend's dream I said don't mess with me I said don't mess with me I'm your girlfriend's nightmare Your boyfriend's dream Be your best friend Turn around and I'm your enemy I'm your girlfriend's nightmare Your boyfriend's dream I said don't mess with me I said don't mess with me B-I-T-C-H (You'd better write it down) B-I-T-C-H (Cause I told you now) B-I-T-C-H (You'd better write it down) B-I-T-C-H (Cause I told you now) Ooh-oooh, hey-hey, I'm looking good aren't I? Ooh-oooh, What you say? I'm your girlfriend's nightmare Your boyfriend's dream Be your best friend Turn around and I'm your enemy I'm your girlfriend's nightmare Your boyfriend's dream I said don't mess with me I said don't mess with me I'm your girlfriend's nightmare Your boyfriend's dream Be your best friend Turn around and I'm your enemy I'm your girlfriend's nightmare Your boyfriend's dream I said don't mess with me I said don't mess with me I'm your girlfriend's nightmare Be your best friend Turn around and I'm your enemy Girlfriend's nightmare.