"Hey Dude" is a Britpop song by English psychedelic rock band Kula Shaker. Written by frontman Crispian Mills and Kula Shaker, the song was released as the third single from their 1996 debut studio album, K, on 26 August 1996. Produced by John Leckie, "Hey Dude" became the band's joint-highest-charting song in the United Kingdom, peaking at number two in September 1996. Internationally, the single charted in Australia, Ireland, and the Netherlands, as well as on the Canadian and US rock charts. In Australia, the song was ranked at number 60 on the Triple J Hottest 100 of 1996.

Crispian Mills is an English singer-songwriter, guitarist, and film director. Active since 1988, Mills is best known as the frontman of the psychedelic indie rock band Kula Shaker. Following the band's break-up in 1999, he remained with Columbia Records, and toured with a set of session musicians under the name Pi, although no official studio recordings were released in full. After the label rejected the Pi album, Mills disappeared for a short time, returning in 2002 as frontman and lead guitarist for back-to-basics rock outfit The Jeevas, who disbanded in 2005 to make way for a reformed Kula Shaker, who released their third album Strangefolk in 2007. In 2010 he released the album Pilgrims Progress with Kula Shaker. In 2017 the band celebrated the 20th anniversary of their album K with the release of the new record K 2.0. Mills joined the band for a sold-out UK tour to celebrate the anniversary.