[ WP ] John Cena 's theme song is actually the signal for the final battle between Heaven and Hell ... a WWE showdown .

The announcer stood in the center of the ring. The Undertaker had just been announced to the sound of the stadium erupting in cheers. As the man himself came forward and climbed into the ring, the crowd eventually quieted enough for the announcer to continue. 
 `` And in the opposite corner,'' he cried into the microphone, voice amplified by hundreds of speakers throughout the arena, `` A man who truly needs no introduction.... JOHN CENA!'' 
 Lights flashed, sound roared, and the crowd positively lost itself. As Cena stepped forward, his iconic theme music began to play, repeated through the speakers of the arena, as well as televisions and computers around the world. 
 
 Many miles away from the arena where the world was focused, the ground rumbled and cracked open. Fire spilled out onto the barren desert floor, turning a vast swath of land into glass. From the bowels of the Earth ( so it seemed, though technically from a bubble of a parallel dimension ) poured a swarm of demons, ghouls, and various hellbeasts. Moments later, the heavens were torn asunder and out rushed the heavenly host, cherubim and seraphim alike. 
 An outside observer might have imagined that this was the apocalypse, and they would only be half right. For while it was indeed the final battle for the fate of Heaven, Hell, and Earth, it was not to be fought by armies, but by single combat between two champions. The assembled hosts of heaven and hell had gathered to form a ring, into which stepped one of the largest angels and one of the mightiest demons. Michael and Beelzebub had been enemies in many epic wars of the past, for every conflict between humans was mirrored by a celestial battle. But they were not to meet in combat this day. 
 *THE TRUMPETS OF ARMAGEDDON HAVE BEEN SOUNDED*, they bellowed with one voice. *HEAVEN AND HELL MEETING IN THE FINAL BATTLE FOR EARTH. * 
 Michael took a step backwards and Beelzebub continued alone. *REPRESENTING HELL, THE PRINCE OF DARKNESS, THE FIRST EVIL, THE MORNING STAR..... LUUUUUUUUUUUCIFER! * 
 A roar went up from the collected demons as a dark, shadow emerged from the entrance to Hell, spreading to cover the sky from horizon to horizon before coming together in the ring to form the body of Lucifer. Beelzebub then stepped back to allow Michael to introduce Heaven's champion. 
 *IN THE OTHER CORNER, REPRESENTING HEAVEN, THE GREAT I AM, THE ALPHA AND THE OMEGA, THE KINGS OF KINGS..... NO WAY, IT'S YAHWEEEEEEHHHHH! * 
 A corresponding roar came from the assembled angels as the world was covered in pure light, which faded to reveal Yahweh standing in the ring next to Michael. 
 
 Mere minutes later, at the same time an announcer in a Las Vegas arena ordered the beginning of a match between Cena and the Undertaker, the combined voices of Michael and Beelzebub roared *FIGHT! *
