The truth is bulletproof, there's no foolin' you I don't dress the same Me and who you say I was yesterday Have gone our separate ways Left my livin' fast somewhere in the past 'Cause that's for chasin' cars Turns out monkey bars lead to broken hearts And goin' way too far I know I used to be crazy I know I used to be fun You say I used to be wild I say I used to be young You tell me time has done changed me That's fine, I've had a good run I know I used to be crazy That's 'causе I used to be young Take onе, give it out, it's not worth cryin' 'bout The things you can't erase Like bad news and regrets, words I never meant And ones that got away Left my livin' fast somewhere in the past And took another road Turns out crowded rooms empty out as soon There's somewhere else to go, oh-oh I know I used to be crazy I know I used to be fun You say I used to be wild I say I used to be young You tell me time has done changed me That's fine, I've had a good run I know I used to be crazy That's 'cause I used to be young Oh-oh, oh-oh-oh, oh-oh-oh Oh-oh, oh-oh-oh, oh-oh-oh Oh-woah, oh-woah, oh-woah, oh I know I used to be crazy Messed up, but yeah, was it fun I know I used to be wild That's 'cause I used to be young Those crazy nights are not wasted I remember every one I know I used to be crazy That's 'cause I used to be young You tell me time has done changed me That's fine, I've had a good run I know I used to be crazy That's 'cause I used to be young