Kailua Moon performs 'Aloha Oe' on an ukulele from the 1800s Netflix star and ukulele virtuoso Eden Kai performs an original song Musician Kalae Camarillo performs hit song 'Old Kihei' ...

The ukulele, that four-stringed instrument that brings to mind kitschy Hawaiian grass-skirt performances and Tiny Tim, is suddenly hip, with an upcoming concert in Williamsburg to prove it.