Are you gonna curse? Are you gonna cry? Are you gonna air your dirty laundry On a Saturday night? Are you gonna call your friends, sing karaoke? Gonna sit at home all sad and lonely? Lookin' like hell, 'cause your mascara's runnin'? Are you gonna cut your hair and dye it blonde? Turn off your phone, turn up the song Look in the mirror and feel like your nothing? You think you know You think you know You think you know who you are In somebody's arms But you don't know No, you don't know Yeah, you don't know who you are 'Til somebody breaks your heart Ha-ha-ha-ha-heart Are you gonna get mad? Are you gonna get even? Or are you gonna find Something bigger than you to believe in? Are you gonna stuff your face inside a pillow? Gonna hang your head outside a window? Feel a brand new day kissing your cheek It's okay if you wanna hit rock bottom Slip once or twice and call him All I know is if you're anything like me You think you know You think you know You think you know who you are In somebody's arms But you don't know No, you don't know Yeah, you don't know who you are 'Til somebody breaks your heart Ha-ha-ha-ha-heart 'Til somebody breaks your heart Ha-ha-ha-ha-heart 'Til somebody breaks your heart You can wave it like a flag Or a scarlet letter It could make you bitter Or make you better You think you know You think you know You think you know who you are In somebody's arms But you don't know No, you don't know Yeah, you don't know who you are 'Til somebody breaks You think you know You think you know You think you know who you are In sombody's arms But you don't know No, you don't know Yeah, you don't know who you are 'Til somebody breaks your heart Ha-ha-ha-ha-heart 'Til somebody breaks your heart