Israel Kaʻanoʻi Kamakawiwoʻole, also called Braddah IZ or just simply IZ, was a Native Hawaiian musician and singer. He achieved commercial success and popularity outside of Hawaii with his 1993 studio album, Facing Future. His medley of "Somewhere Over the Rainbow/What a Wonderful World" was released on his albums Ka ʻAnoʻi and Facing Future, and was subsequently featured in various media. The song has had 358 weeks on top of the World Digital Songs chart, making it the longest-leading number-one hit on any of the Billboard song charts. Kamakawiwoʻole is regarded as one of the greatest musicians from Hawaii and is the most successful musician from the state.

"Somewhere Over the Rainbow/What a Wonderful World" is a medley of "Over the Rainbow" and "What a Wonderful World", recorded by Hawaiian singer Israel Kamakawiwoʻole. First released on the 1990 album Ka ʻAnoʻi, an acoustic rendition of the medley became notable after its release on his 1993 album Facing Future.