KWFM is a commercial radio station located in Tucson, Arizona, broadcasting on 1330 AM. KWFM airs a Talk & Entertainment format.This station became "The Star" on Tuesday January 24, 2012.KWFM is licensed to South Tucson, Arizona, USA, and fully serves the Tucson area with the cleanest signal on the AM band. The programing features: CBS Radio and CNN Radio. Hosts include, Stephanie Miller, Ed Schultz, Michael Smerconish, Dr. Joy Browne, Leslie Marshall, Thom Hartman, and Don Imus. KWFM is one of only a few AM stations in the USA that actually raises the transmitting power at night, rather than lowering it.