Isobel Campbell (born April 27, 1976) is a Scottish singer, cellist and composer in the indie and folk genres. As with her former band Belle and Sebastian, she is often labelled as twee pop. Campbell was a member of Belle and Sebastian from their formation in Glasgow in 1996 until 2002, when she departed the band for personal reasons. Isobel played cello with Belle and Sebastian and sang backing vocals. She also took lead vocals on a few songs from the band, and co-wrote their top-20 U.K. single Legal Man.