There are so many songs that I like I would want to use one that I would want to use but people would say I am stealing from Rich Franklin is "For those about to rock" by AC/DC so I will go with another AC/DC song "Hell's Bells"
Nice! I am a HUGE AC/DC fan. My favorite entrance is Randy Coutures to Back in Black. I would use that song or Thunderstruck. Also:
Down with the sickness-Disturbed
Hard Hittaz-3 6 Mafia
Some of these songs just make you want to get pumped. Love them for motivation.