Colin Murray "Gem" Archer (born 7 December 1966) is an English musician, best known as a member of the English rock bands
Oasis and
Beady Eye. He is also known for his work with
Heavy Stereo. He joined Oasis as rhythm guitarist in November 1999, and handled lead guitarist for acoustics as well. He also contributed towards the writing of some of the band's songs. Oasis broke up in August 2009, but in November 2009,
Liam Gallagher announced he was writing new material with Gem as well as other ex-Oasis members minus his brother
Noel, under the name
Beady Eye. After two albums with
Beady Eye, 2011's
Different Gear, Still Speeding and 2013's
BE, the band officially disbanded in October 2014.