What song was playing on last nights episode of 90210 where Silver and Dixon were by the pool at the Roosevelt?

It went something like..."You were the one caught in my eye...you were the one to make me cry..do or die..my lullaby.." and a girl was singing it. It was sort of poppy-rock. The episode was on Tuesday, September 23rd. I love the song and I'm going crazy trying to figure out who sings it or what it's called.