Spose began rhyming while he was in eighth grade, and started to pursue his rapping career in 2004. In 2007, he self-released his first album, Preposterously Dank.
In January 2010, Spose's single, "I'm Awesome" (from the We Smoked It All mixtape, a collaboration between Spose and Cam Groves), received airplay on Maine radio stations. In February 2010, after the song caught on in other parts of the United States, Spose signed a record deal with Universal Republic Records and announced that he would begin working on a music video. In March 2010, the video was filmed in Wells at the town-owned activity center where Spose had his first concert at the age of 14. The video was released on April 14, 2010. "I'm Awesome" peaked at #37 on the Billboard Hot 100.
Spose's major-label debut album, The Audacity!, is scheduled to be released in 2011.
On October 25, 2010, Spose announced through a series of Facebook posts (which were linked to Twitter) that he felt that We Smoked It All Vol. 2 had too many original songs to be considered a mix tape. Partially because of this, he decided to create a "project," titled Happy Medium, with many original songs that were originally supposed to be on We Smoked It All Vol. 2, in addition to other material. He also said that new songs from Happy Medium would be released at 4:20 PM Eastern Time every Wednesday up until the release of "Happy Medium."
On December 17, 2010, Spose released the entirety of Happy Medium for streaming on his Facebook page. The physical album was released in Bull Moose music stores in late December 2010, and has been released on iTunes in January 2011. Although various songs from We Smoked It All Vol. 2 have been released, the release date for the entirety of the album has yet to be announced.
On January 31st, Spose announced on FaceBook that he would release The Peter Sparker Mixtape in the Spring of 2011, before The Audacity! or We Smoked It All Vol.2. However, on March 14th, he posted that We Smoked It All Vol.2 would be released on April 20, 2011, before either The Peter Sparker Mixtape or The Audacity, contradicting his earlier post.
"We Smoked It All Vol. 2" was released on April 20, 2011 at midnight.