Tom: E E A E A [Verse 1] E A Four squeezed in on a bench seat E A Five holding on the bed E A Slip Joe's older brother a 20, that was plenty E A For a case of beer and a pack of Reds E A And we were set E A We wore our jerseys on Fridays E A Felt like kings of the world C#m B Class ring hanging on a silver chain A From the neck of your girl [Chorus] E A Hey, back when young and dumb was beautiful E B We knew that we knew it all, no one could proves us wrong E A E Those were the days, couldn't wait to lose our innocence A E B Brag about it to our friends, Monday after prom C#m B Swore we'd always be together, didn't know any better A E A Back when, we thought, we'd be, 18 forever E A 18 forever [Verse 2] E A Back when freedom was a set of car keys E A We were half a tank from anywhere E A Yeah, I'm still wearing that memory on me E A We got tattoos on a dare E A We didn't care [Chorus] E A Hey, back when young and dumb was beautiful E B We knew that we knew it all, no one could proves us wrong E A E Those were the days, couldn't wait to lose our innocence A E B Brag about it to our friends, Monday after prom C#m B Swore we'd always be together, didn't know any better A E A Back when, we thought, we'd be, 18 forever E A 18 forever [Bridge] C#m Well it's crazy how those fast times, B ones you thought would always last times, A B turn into wish you had them back times [Chorus] E A Hey, back when young and dumb was beautiful E B We knew that we knew it all, no one could proves us wrong E A E Those were the days, couldn't wait to lose our innocence A E B Brag about it to our friends, Monday after prom C#m B Swore we'd always be together, didn't know any better A E A Back when, we thought, we'd be, 18 forever E A 18 forever [Outro] E A 18 forever E A