Jumbalassy has had 3 concerts.

Jumbalassy is most often considered to be Modern Alternative Rock, Sleep, Drift Phonk, Melodic Dubstep, and Welsh Indie.

The last Jumbalassy concert was on September 02, 1999 at Seattle Center in Seattle, Washington, United States. The bands that performed were: Big Bad Voodoo Daddy / Sonic Youth / Violent Femmes / Jimmy Cliff / Everlast / Emmylou Harris & Linda Ronstadt / Cake / Steve Winwood / Tuck & Patti / Sista Monica / Oleander / Mojo NIxon & the Toadliquor / Danny Hoch / David Guterson / Los Van Van / Imperial Teen / IQU / Jumbalassy / HB Radke & The Jet City Swingers / Swamp Mama Johnson / Pink Martini / Dusty 45's / Pete Krebs / Pearl Django / Indigo Girls / Murder City Devils / The Souvenirs / Mickey Hart's Planet Drum / The Fastbacks / R.E.M. / Death Cab for Cutie / Black Eyed Peas / Tom Tom Club / Loudon Wainwright III / The Pretty Things / Rocket from the Crypt / Moon Zappa.