KGUM-FM, (105.1 FM) currently broadcast as 105 The Kat is a radio station, broadcasting in Hagåtña, Guam. The station broadcasts Oldies/Classic Hits music from the 1960s, 1970s, 1980s and 1990s. Prior to its format flip in September 2007, they had an Active rock format with the moniker "The Rock" since its sign-on in 1999.The station is owned by Sorensen Pacific Broadcasting.