Besides acting, Hannemann was an accomplished singer and recording artist. He would provide entertainment at Democratic Party rallies, such as those attended by
Governor George Ariyoshi and Hawaii State Senator Francis A. Wong. At one time, he was said to have rivalled singer
Don Ho in versatility. Hannemann was working on a second album with
Lani Kai but unfortunately, Lani died before its completion. He has an appearance on the LP album
Invitation to Paradise ~ Polynesian Cultural Center, released by BMC in 1979. He had a recurring role as Nephi in
One West Waikiki, and has had various roles in films. ==Other==