Louis Keouli Thompson (April 22, 1882 – July 15, 1937) better known by his stage name Segis Luvaun, was a Hawaiian singer and musician and the reported King of Ukulele Players.
Thompson, native to Hawai'i, claimed United States citizenship when Hawaii was annexed by the United States as a territory in 1898.
He performed much of his life, first touring the United States and later throughout Scandinavia and Europe, many times for Royalty.