In 1975, the station signed on as WGRG-FM, airing a free formprogressive rock sound. At that time, it was not associated with WBEC (1420 AM). WBEC had an FM station on 94.3 MHz dating back to the late 1940s, but gave it up in an era when few people owned FM receivers. It later put another FM station on the air on 105.5 MHz; that station moved to Easthampton, Massachusetts, becoming WVEI-FM, in 2006.
From 1977 to 2006, the station was known as WUPE-FM. WUPE began operations in 1977 simulcasting the top 40 sound heard on WUPE (1110 AM). WUPE-AM-FM later switched to soft adult contemporary and then oldies. After oldies, the WUPE-FM call sign and format were moved to 100.1 FM.
In August 2013, Gamma Broadcasting reached a deal to sell its Berkshire County radio stations, including WBEC-FM, to Reed Miami Holdings.[3] The sale was canceled on December 30, 2013.[4] In October 2016, Gamma agreed to sell its stations to Galaxy Communications.[5] That sale also fell through, and in 2017 the stations were acquired by Townsquare Media.[6]