1.Shinsuke Nakamura's theme: The Rising Sun (by CFO$).
Shinsuke Nakamura is known as the 'King of Strong Style', and his theme song embodies this nickname. Shinsuke Nakamura is such a charismatic and intriguing figure, who reminds fans of a mixture between popstars Michael Jackson and Freddie Mercury. When Nakamura performs to the top of his level in the ring, he can bring emotion out of even the most casual wrestling fans.
Funnily enough, his entrance song seems to do the exact same thing, with the lyricless music an absolute thing of beauty. The song consists of violin playing a brilliant tune, and if you don't want to take my word for it, listen to the fans humming the tune every single time the guy comes out to the ring on SmackDown Live. If you have never seen him walk to the ring with 'The Rising Sun' song, you have not lived.
I definitely feel like Nakamura's entrance has saved him on the main roster since his debut back in April because he has been booked very poorly by the WWE creative team so far. When WWE finally get it right with Shinsuke creatively, he will then be actually able to do his entrance justice, because that is the only thing keeping him over with fans at the moment.