[Intro: will.i.am] Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** Big fat ba**, the big fat ba** [Hook: Britney Spears] I can be the treble, baby, you can be the ba** You can be the ba**, you can be the ba** I can be the treble, baby, you can be the ba** You can be the ba**, you can be the ba** I can be the treble, baby, you can be the ba** You can be the ba**, you can be the ba** I can be the treble, baby, you can be the ba** You can be the ba**, you can be the ba** [Verse 1: Britney Spears] Hey, you see me down on the floor I want you to take me higher Till I can't take it no more (It's getting bigger, the ba** is getting bigger) And now, you see me up on the sky I was rocking the bottom Now look at me I can fly [Hook 1: Britney Spears] I can be the treble, baby, you can be the ba** You can be the ba** You can be the ba** I can be the treble, baby, you can be the ba** You can be the ba** You can be the ba** [Interlude: Britney Spears] (It's getting bigger, the ba** is getting bigger) (It's getting bigger, the ba** is getting bigger) (It's getting bigger, the ba** is getting bigger) (It's getting bigger, bigger, bigger) [Bridge: Britney Spears & will.i.am] The ba** is getting low The ba** is getting low The ba** is getting low (It's getting bigger, the ba** is getting bigger) [Verse 2: Britney Spears] Hey, you see out in the night Wanna go out dancing, so I can feel alright (It's getting bigger, the ba** is getting bigger) Yo, take me out to the lights I wanna have me a good time, the ba** is feeling' nice (It's getting bigger, the ba** is getting bigger) [Hook 2: Britney Spears] I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** [Interlude 2: Britney Spears & will.i.am] Y'all better get ready for the kick drum (For the kick drum, for the kick drum) Y'all better get ready for the kick drum (For the kick drum, for the kick drum) [Verse 3: will.i.am] Yo, it's a kick drum, come and get some The sound that's rocking your system When it pounds, it cause an addiction Y'all addicts better have a prescription Me and Brit got the whole club tripping They sit and wait and listen For the kick drum, for the kick drum For the kick drum, for the kick drum For the big, big, fat fat ba**, rocking all in your face Vibration got the place, right now let's get crazy Here we go, here we go, here we go Everybody in the place get frantic This beat right here's beat is gigantic [Interlude: Britney Spears] (It's getting bigger, the ba** is getting bigger) (It's getting bigger, the ba** is getting bigger) (It's getting bigger, the ba** is getting bigger) (It's getting bigger, bigger, bigger) [Hook 2: Britney Spears] I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** I can be your treble, baby, you can be my ba** You can be my ba**, you can be my ba** [Outro: will.i.am] The Femme Fatale