Grantley Jonathan Nicholas is a Welsh musician and the lead singer and guitarist of the rock band Feeder.

Feeder are a British rock band formed in Newport in 1994. They have released 12 studio albums, 12 compilations, four EPs and 43 singles, spending a combined total of 184 weeks on the singles and albums charts as of 2019, while accumulating 25 top 75 singles between 1997 and 2012. At the peak of their commercial success, Feeder won two Kerrang! Awards in 2001 and 2003; they were inducted into their Hall of Fame in August 2019.