GLEE: Rachel (Lea Michele, R) and her mother Shelby (guest star Idina Menzel, L) perform together in the "I Am Unicorn" on Sept. 27
Though Glee doesn’t have a sperm donation plot line, it does have a plot line in which the main character searches for her biological parent. In the episode “Dream On,” Rachel Berry — the daughter of a gay couple — confides in her love interest, Jesse, that she has always wanted to discover her biological mother. Shelby Corcoran (played by Idina Menzel), the coach of rival glee club Vocal Adreneline, reveals that she is Berry’s mother.