On October 12, Haley and Mia from One Tree Hill will head over to Life Unexpected in a special crossover episode.
They'll show up in Portland for a radio show concert hosted by Ryan, during which Haley and Cate bond over their similar pasts. Now, The CW has confirmed an appropriate guest star for the installment:
Sarah McLachlan will cameo as herself, performing the single "Forgiveness" at the event.
One Tree Hill and Life Unexpected both premiere new seasons on Tuesday, September 14.