David Lee Roth canceled all but one of his upcoming tour dates, with no reason given for the change of plan. Van Halen fans may be surprised at the contents of Hagar’s message, given the tensions between the two singers over the past decades. READ MORE: How David Lee Roth Out-Gonzoed Van Halen on Eat ‘Em and Smile’“Hey Dave, Sammy here,” he said in a Facebook video. I hope you’re well. Sammy Hagar’s Offer to David Lee Roth Is ‘From the Heart’Hagar then extended his invitation: “Come to Vegas for the residency in September," he said.