In 1997, Porter began working with brother Patrick Porter creating and evolving the band Showbread, which became a full-time international touring act in 2002. In 2004, following several independent albums, Showbread released No Sir, Nihilism Is Not Practical, featuring music and lyrics written by Porter, and arranged and completed by he and his band mates. No Sir... expectantly failed to achieve commercial success, the songs being relentlessly chaotic and with mostly no traditional song formats. However, it was rewarded by Revolver Magazine to be the beast Screamo album of the year, and Showbread's already respectable and rabid fan base was propelled by the thousands.

In 2006, Showbread released Age of Reptiles, a drastic and controversial departure from the spastic, frenetic style of their debut album. The record, featuring straightforward, almost traditional rock songs garnered drastically polarized reviews, heralded by many as an unpredictable work of creative genius and by others as an uninventive sell-out. The seemingly most random song title in the history of love songs, Oh! Emetophobia! is written about and named for Josh's fiancee (now wife), who actually is emetophobic.

Later that year, Porter announced through Showbread's website and his own Official homepage, that he would be releasing his first novel, The Spinal Cord Perception, at the close of 2006. A limited edition version of the book is said to be self-published by Porter and sold via his web-store and on the road with Showbread. He said recently on his Myspace blog that the book will soon be available in-store. He also said that he is currently starting his second novel, which will be written mostly around April 2007.

Porter has also teamed with acclaimed produced Sylvia Massy Shivy to design artwork for her Psycho Empire T-Shirt line. Porter's designs reminiscent of John Kricfalusi, are sold on tour with Showbread and feature crazed cartoon creatures mutilating each other.

Porter married a girl named Abigail on November 11, 2007. More on the couple can be found at http://www.mywedding.com/joshuaandabigail.

His three favourite bands are Nine Inch Nails, The Flaming Lips, and Genesis.