Pennywise is a punk band from Hermosa Beach, CA, formed in 1988. Other than their initial EP's, all of their full length albums have been released on Epitaph.
Pennywise and Bad Religion have collaborated in a variety of ways:
Bad Religion and Pennywise toured together during multiple Vans Warped Tour's and played 24 dates together during the Summer Nationals Tour in 2014.
^ The BR Page - Tours & Shows