Episode Title Song (Season 2, Episode 4)

[DCB78]

In the episode titled "Who Do You Trust?" (Ep. 2.4) of The Hills, there's a song with the lyrics:

Hurts so bad
When it feels so good
She keeps coming back
Like you knew you would
You just can't wait for...


It's sung by what seems like a solo female vocalist. Does anyone know who the artist is and the name of the song? Thank you.

[DCB78]

It's the first song played in that episode, right after the opening credits. Thanks.