MICHELLE BRANCH still has a hard time performing the song TENNESSEE with new singing partner Jessica Harp, because it is a romantic ode to her brother. The two women recently formed country music duo The Wreckers and regularly have to perform the track, which is hugely popular with fans. Harp had previously dated the ARE YOU HAPPY NOW singer's brother and wrote the deeply personal song about the emotional turmoil she experienced during the relationship. Branch explains, "Every time I sing it, I think a) It's weird that I'm singing about my brother and b) I was monkey-in-the middle of that relationship because I had to choose sides and talk to both of them. "They aren't together anymore; my brother missed out!