Contemporary worship music (CWM), also known as praise and worship music, is a defined genre of Christian music used in contemporary worship. It has developed over the past sixty years and is stylistically similar to pop music. The songs are frequently referred to as "praise songs" or "worship songs" and are typically led by a "worship band" or "praise team", with either a guitarist or pianist leading. It is becoming a common genre of music sung in Western churches, particularly in Pentecostal churches. Many non-charismatic Protestant churches use this type of music.