His name is Melanie Martinsson and he started out as and artist in the year 2000 and is currently signed to Wormfood Records. His music has a mixed style including rap, punk rock, alternative rock, electronica, techno and industrial. He has released 4 mixtapes, 4 EPs and 4 albums, though due to the current music industry's lack of tangible/physical record production/sales, he coined the term 'Dement-O-Vision' to describe the recent digital releases.

In 2010 Melanie Martinsson and freelance photographer Alexander Donka worked on a photoproject depicting the recording of the latest album. In 2011 the album was successful on a zero marketing budget and sold Gold (20k), on ESC season, and also received the Impala Sales Award.

Melanie is Demented has music featured in various films, such as the Truckfighters movie. Melanie has extensively used social networking to build a fanbase.

In 2014 Melanieisdemented releases the album Blind, which is a soundtrack to a book with the same title and pseudonym. It is the most costly DIY-project in Sweden to date. The album is a themealbum which accompanies the book. The book is about what would happen if all of the worlds firearms were exchanged with oranges.

In 2015 Melanie Is Demented plays a sold-out European tour together with Portuguese indielabel Chili Com Carne, and all profits go to charity