James Bond movies are iconic for a wide variety of reasons. There is, of course, the international super spy, his badass cars, his cool gadgets, and his lady friends, among other elements. One of these is the opening theme of the movie. If you’re interested in such things, you can lay a wager on who will sing the signature tune for Spectre , Bond’s upcoming adventure, but according to British Bookies, there is one clear frontrunner in this race.According to The Hollywood Reporter , the odds-on favorite to share his vocal stylings with the opening ofis Sam Smith . The 23-year-old British troubadour may be young, but he walked away with four Grammys earlier this year on the back of his maudlin single "Stay With Me." According to the bookies, he is a 2/5 favorite to land the coveted job. To give you pause before you plunk down your hard-earned dollars, however, Smith has denied rumors that he is involved, though the bookies don’t seem to buy his story.director Sam Mendes , who helmed the last James Bond movie, the billion-dollar-earning, even fanned the flames. He says the theme has already been recorded and is "fantastic," and indicated that we won’t have too long to wait to find out who landed the gig. All of this, of course, only fuels the speculation even more.If Smith does wind up with the job, he’ll have some big shoes to fill. British singer and songwriter Adele belted out thetheme and was rewarded with an Academy Award and Golden Globe for her soulful efforts. She’s not the only notable artist to lend their pipes to the Bond franchise, either. Over the years you’ve heard Paul McCartney, Chris Cornell, Shirley Bassey, Duran Duran, and many more add their talents to the Bond pool.Though Smith may be at the head of this pack by a wide margin, at least according to bookmakers in the U.K., he’s not the only contender. Ed Sheeran comes in at 8/1 odds. Like Smith, he has also denied being involved, but if one of them does wind up with the job, they’ll be the first British male solo singers to belt out the James Bond theme since 1965, when Tom Jones contributed the theme toRunning down the list, "Love Me Like You Do" singer Ellie Goulding comes in at 10/1; a repeat Adele performance sits at 12/1, which would make her only the second artist to record multiple Bond themes; Lana Del Rey at 14/1 is the highest non-Brit on the list; 18-year-old Lourde sits at 16/1, though she contributed a song to The Hunger Games: Mockingjay—Part 2 , which opens shortly afterand may diminish her chances; and Oasis frontman Noel Gallagher is at 25/1.We don’t know exactly when we’ll find out how accurate the bookie’s prediction are, but we do know that we’ll see it for ourselves on the big screen when Spectre opens in the U.K. on October 26 and in the U.S. on November 6.