Bands containing sisters and brothers

Answer 1

The Cowsills were supposedly a family group, the name of the group being the same as the family surname, admittedly an unusual one. One might also factor in the factual Trapp Family, and the fictional Partridge family- but two of the members, Shirley Jones and the lead male singer- were mother and son in real life. The actor's name was Casady or Cassidy. It was either David or Neal. Two of the Ronette, Veronica and Estelle were blood sisters, the other member, Nedra Talley was a cousin. The mothers of Ronnie and Estelle ( Beatrice Bennett) and Nedra Talley ( Suzu Miller Talley) were sisters. So much for ( family) act values.

Answer 2

Tim Foremen and Jon Foremen of Switchfoot are brothers.

Hazakim's Michael and Anthony are brothers.

Remedy Drive's 4 members are all brothers.

Answer 3

There has been various bands formed by brothers and sisters such as The Jackson 5 and The Jonas brothers.

Answer 4

Jonas sisters xD