WEZE is an AM radio station in Boston, Massachusetts on 590 kHz. The station is owned by Salem Communications and airs religious programming. For a short period, Salem Communications operated WEZE-FM in Pittsburgh, Pennsylvania, billed as "Easy 104.7". Though unusual, FCC rules allow co-owned stations in different cities to share call letters between themselves. Salem purchased the Pittsburgh station as part of a strategic move to compete against a Christian-formatted AM/FM competitor, but would have to run another format until the contracts with the client ministries could be obtained. Salem chose to run an easy-listening format until the contracts were obtained in October 1991, when WEZE-FM evolved into WORD-FM.