Ka'au Crater Boys were a Hawaiian Contemporary musical duo composed of Ernie Cruz, Jr. (vocals, guitar, bass), Troy Fernandez (?ukulele, vocals). They recorded and released four popular Hawaiian Contemporary albums.
Their work garnered them three N? H?k? Hanohano awards, (N? H?k? Hanohano means "The Distinguished/Glorious Stars", Hawaii's version of the Grammy Awards) from The Hawaii Academy of Recording Artists.
The Ka?au Crater Boys were formed in the early 1990s by Ernie Cruz Jr. (the son of Ernie Cruz Sr. and brother of Guy and John Cruz who are also local entertainers) and Troy Fernandez.