KAMP-FM 97.1 FM, known on-air as 97.1 AMP Radio, is a top 40 radio station in Los Angeles, California. The station is owned by CBS Radio. The station had long been known as KLSX before the call sign changed on June 30, 2009. The 97.1 frequency had originally signed on as KKLA-FM and operated under those call letters during the 1950s and early and mid 1960s. In the late 1960s, 97.1 FM became home to KGBS-FM, a country music station when KKLA was purchased by Storer Broadcasting. Since its AM station KGBS 1020 was only authorized to be on the air during daylight hours, this allowed the format to be broadcast 24 hours a day. In the early 1970s, the station experimented with rock 'n' roll and pop music formats before returning to country in 1973, when it adopted the name 'Gentle Country'.