Complex sentence: In 1997, the station switched formats back to soft rock/adult contemporary music and renamed KBFB "B-97.9" before making its final change to mainstream urban as "97.9 The Beat" in 2000 after the station was sold to Radio One.
Split into simpler sentences: In 1997, the station switched formats back to soft rock/adult contemporary music and renamed to the current KBFB, and the slogan became "B-97.9". KBFB made the change to mainstream urban as "97.9 The Beat" in 2000 after the station was sold to Radio One.