No Doubt is the sixteenth release of the Christian rock band, Petra. It was released on August 26, 1995. The tone of the album is more pop-oriented than any previous release featuring Schlitt. Most of the rock songs lack the driving edge of their previous albums, and the sonic field is no longer flooded with distorted guitars, leaning more toward a calculated, radio-friendly sound. All the guitars in the album were played by founder Bob Hartman. However, since he had quit touring with the band before the release of the album, new guitarist David Lichens was enlisted to travel with the band and appeared in the album art and promotional pictures. The album also featured another new member, keyboardist Jim Cooper. Cooper was a keyboard technician for former keyboardist John Lawry for several years. When Lawry retired, Cooper replaced him