|Birth name||Matt Lee|
|Born||October 9, 1985|
|Genres||Happy Hardcore, UK Hardcore|
|Years active||2002 - present|
Gammer first started in 2002. Many of his music tracks are done with Dougal on the record label Essential Platinum, which is owned by Dougal. Gammer has also worked with other artists such as G. Spencer and DJ Seduction.
In April 2007 he started his own record label called Muffin Music.
In 2008 he was named Hardcore DJ of the year.