Think Tank! What 80's bands contained siblings in their line-up?

Reading an article about The Bangles gave me a show idea. Susanna said there's an extra-special blend to their harmonies because they have sisters (Vicki and Deb Peterson) in the band. "If you look at the Beach Boys and other bands that have had family members singing together, there's a really cool thing that happens." Off the top of my head- The Kinks, Heart, Crowded House, Bangles, AC/DC...any more???