By Brandy McDonnellOklahoma country music superstar Blake Shelton returned to “The Tonight Show Starring Jimmy Fallon” Monday, and it didn’t take him long to start dryly joking, “I don’t know why I come on this show.”“I miss Johnny Carson so badly,” the Ada native quipped not long into playing the “Name That Song Challenge,” in which he and Fallon tried to correctly guess the title of random songs The Roots played one instrument at a time.Although the Tishomingo resident managed a come-from-behind victory, he was actually a big loser in the game, since he failed to correctly guess the title of a certain song by his girlfriend Gwen “Hollaback Girl” Stefani.“All I know is that Blake is in a lot of trouble right now,” Fallon said.“I came to this show to promote my album, and I am losing everything.Read more on NewsOK.com