Jason Hammel plays drums with husband and wife duo in which American indie band formed in 1997?
Jason Hammel (musician):  He is a vocalist and drummer for Mates of State, of which he is half complemented by his wife, Kori Hammel, a vocalist and keyboardist for the band. Mates of State: Mates of State are an American indie pop duo, active since 1997.
i don't know