When The Shield did their breakup they became three separate characters. Rollins turned into a suck up to Triple H, Ambrose became a lunatic and Reigns essentially stayed the same. The theme song is not exactly the same, but it's pretty similar. Reigns should have a song that's totally different than what he had with The Shield. It also wouldn't be a bad idea if his music had lyrics to it. Having a generic rock song just doesn't stand out very much. Look at Bray Wyatt. His song is great. People sing along with it. Randy Orton, Triple H, Shawn Michaels, Edge (maybe the best song ever) and so many others have songs with lyrics that fit the character. That's what Reigns needs. He should suggest something to management. If he has a favorite band or type of music, tell them. Do whatever makes him more comfortable.