The guitarist and bassist from Stone Temple Pilots were on a break due to their vocalist, the now deceased Scott Weiland, being dysfunctional. Vocalist, Richard Patrick (former NIN member), was breaking from his band Filter. Drummer, Ray Luzier (currently with Korn), was taking a break from the David Lee Roth band. So guess what happened next? A super band of sorts. They made one album. Great musicianship happening here.