Could've been so easy Could've been a friendly phase Could've been simple Could have it, should have But that's not the case Tell me who are you To be calling me names You're making yourself the fool Ain't that a shame You can call me liar, cheater, loser Takes one to know one (takes one to know one) You can say I'm bitter, call me, quitter Takes one to know one (takes one to know one) Yeah, takes one to know one And I know you Now you're pointing fingers and The point is lost on me Do you hate to see me happy? Does it fill you with jealousy? What'cha trying to prove By putting me down? Sorry, the joke's on you Like tears of a clown You can call me liar, cheater, loser Takes one to know one (takes one to know one) You can say I'm bitter, call me, quitter Takes one to know one (takes one to know one) Yeah, takes one to know one Yeah, takes one to know one And I know you I know you Yeah You can call me liar, cheater, loser Takes one to know one (takes one to know one) You can say I'm bitter, call me, quitter Takes one to know one (takes one to know one) You can call me liar (liar), cheater (cheater), loser (loser) Takes one to know one (takes one to know one) You can say I'm bitter (bitter), call me (call me), quitter (quitter) Takes one to know one (takes one to know one) Yeah, takes one to know one Yeah, takes one to know one And I know you Could've been so easy Could've been a friendly phase