[2] Miller played in his first band This End Up in 1992,[2][3] and later formed Foreign Objects with future CKY drummer Jess Margera, whom he originally met at high school.

[4] Along with bassist Ryan Bruni, the duo later performed under the name Oil, before meeting guitarist Chad I Ginsburg (who was then working as an audio engineer) and changing the name of the band to CKY.

[7][8] In December 2002, it was announced that Miller would be working alongside guitarist James Murphy, drummer Dave Culross and vocalist Bret Hoffmann on a tribute album for the band Death, to benefit the family of founding member Chuck Schuldiner.

[16] Following the release of An Answer Can Be Found, Miller also responded to Jenny Eliscu's one-star review of the album for Rolling Stone magazine, describing her as "juvenile" and an "ugly skank", and proposing that she was "not intelligent enough to understand" the band's lyrics.

[17] Eliscu responded by complaining to CKY's label, The Island Def Jam Music Group, that the frontman had launched a "harassment campaign" against the journalist, alleging that he had posted her home phone number online, leading to fans calling her with death threats.

[18] In October 2006, it was announced that Miller was working with drummer Tim Yeung and producer Logan Mader on a demo for new death metal side project called World Under Blood.

[27] Miller was replaced in CKY for the first time since the band's formation in 2012, when former Year Long Disaster frontman Daniel Davies joined for a series of shows at Australian music festival Soundwave.

Speaking about the tone of the show, which he claimed was inspired by the work of Howard Stern and Christopher Guest, Miller described it as "very offensive" and "hilarious", joking that he wanted people "to be very angry with [him] after seeing it".