Big Day Out dominated Australia's music scene from the 1990s until early 2010s and first launched with Nirvana as a headliner in 1992.
Headliners over the legendary nationwide festival's lifespan included Neil Young, Kanye West, Metallica, Foo Fighters, Pearl Jam and Red Hot Chili Peppers.
Homegrown acts including Powderfinger, Hilltop Hoods and Spiderbait also found a home on Big Day Out's stages.
Adelaide rock band The Superjesus paid tribute to West in a Facebook post.
"This guy was monumental in the establishment of our career, he gave us a chance when we were so young and put us on the Big Day Out when we had only performed two live shows prior," the band wrote.
"He made so many careers of so many now well known bands, he really did so much for Australian music. The Big Day Out was the biggest festival in the world for a while there … and by god did we have fun.
"Thank you Ken, we are forever grateful and we can't wait to see what you do in the next life."
Many fans have taken to Twitter to share their upset over West's death.
West is survived by his wife Cathy and son Oliver.
