Who is it who Who is it who Who is it who Who is it What is it What is it What is it What is it Oh.....Baby it's you! Who is it who Who is it who Who is it who Who is it What is it What is it What is it What is it Oh...Oh baby it's you! Watch out now baby 'cause I'm in love with you Watch out now baby 'cause I'm in love with you And if you don't love me I don't know what I'm going to do! Who, who, who is it Who, who, who is it Who, who, who is it Who, who, who is it Who, who, who is it Who, who, who is it Who, who, who is it What is it What is it What is it What is it Oh....Baby it's you!