Celebrities from across the country called in to say farewell and thank you to the radio pioneer.
Simpson began in radio as a teenager in Detroit before coming to Washington. He was with 93.9 WKYS for 16 years before moving his morning show to WPGC 95.5 in 1993, where he spent 16 years.
It is reported that contract negotiations for Simpson fell through with CBS Radio. Simpson is not allowed to work on air in Washington for 13 1/2 months per the non-compete clause in his contract with CBS.
"This is a temporary separation until February 2011," Simpson told his listeners Friday morning, but did not reveal his future plans.