Rock of Ages alum Frankie J. Grande and his Big Brother buddy Zach Rance couldn’t keep their hands off each other during season 16 of the hit CBS series. So of course, Rance was front and center at Frankie J. Grande’s solo show Livin' La Vida Grande at 54 Below on January 20—and he couldn’t resist ripping his shirt off and joining Grande on stage. Grande's former Rock co-star, American Idol favorite Constantine Maroulis, was also on hand to cheer him on. Check out these Hot Shots of Frankie's big night!