Sade's highly-anticipated world tour just got a little hotter: fellow Grammy-winner John Legend will be joining her for the U.S. leg of the concert series. In a statement, Legend notes, "I'm very excited to join Sade on her summer tour. She's an incomparable artist and I'm honored to share the stage with her. I know we'll provide our fans with an experience to remember." Legend will be on all 50 stops on the American leg of the tour, which starts June 16 in Baltimore.