wikipedia says:

Throughout his life, Kamakawiwoʻole was obese and at one point carried 757 pounds (343 kg; 54.1 st) on his 6-foot-2-inch (1.88 m) frame.^<4> He endured several hospitalizations because of problems caused by his weight. At age 38, he died of weight-related respiratory illness at The Queen's Medical Center in Honolulu on June 26, 1997, at 12:18 a.m.^<4> Kamakawiwoʻole is survived by his wife, Marlene Kamakawiwoʻole, and his daughter, Ceslie-Ann "Wehi".^<5>

The Hawaiʻi State Flag flew at half-mast on July 10, 1997, the day of Kamakawiwoʻole's funeral. His koa wood coffin lay in state at the Capitol building in Honolulu. He was the third person in Hawaiian history to be awarded this honor, and the only one who was not a government official. Approximately ten thousand people attended the funeral. Thousands of fans gathered as his ashes were scattered into the Pacific Ocean at Mākua Beach on July 12, 1997.^<5>

On September 20, 2003, hundreds paid tribute to Kamakawiwoʻole as a bronze bust of the revered singer was unveiled at the Waianae Neighborhood Community Center on Oʻahu. The singer's widow, Marlene Kamakawiwoʻole, and sculptor Jan-Michelle Sawyer were present for the dedication ceremony.^<6>

The late Hawaiian musician Israel Kamakawiwo'ole (Kah-MAH-kah-VEE-voh-OH-lay), did something rare in music. He redefined a beloved classic.

His version of "Over the Rainbow" has the poignancy of Judy Garland's and the shimmering vulnerability, but these days it's heard so often on TV and in the movies, a younger generation may only know Israel's version. It's become so popular, it is now the most requested version of the song by far, according to music publishing house EMI. That's quite remarkable for a rendition with one voice, accompanied only by ukulele.  {more}