Hapa, which means "half" in Hawaiian, is an American contemporary Hawaiian music duo that merges traditional Polynesian sounds with American folk-rock elements. Originally formed in 1983, Hapa found its identity in the collaboration between guitarist Barry Flanagan and Keli'i Kaneali'i. The duo rose to prominence in Hawaii and internationally with the release of their self-titled album "Hapa" in 1993, which is often hailed as a landmark in Hawaiian music for its fresh and unique take on a sound deep-rooted in tradition.

The group has undergone changes over the years, with Flanagan remaining the constant member. Hapa's music is notable for its lush harmonies, guitar mastery, and seamless blend of English and Hawaiian lyrics. Over time, they have continued to evolve, incorporating various musical styles and influences, while still maintaining their distinct sound that honors Hawaii's diverse musical heritage. Their albums like "Manoa Sessions" and "Kulia I Ka Nu'u" reflect their commitment to musical excellence and cultural authenticity, securing their position as not just performers but as cultural ambassadors of Hawaiian music to the world.