The band is 30 Seconds to Mars (lead singer is Jared Leto btw) and the song is "This Is War." My favorite part of the song is when the crowd is chanting, Fight, Fight, Fight....,because that is exactly what I hear when I'm trying to get through a workout that is kicking my ass. I will not let it beat me. I will fight till the end and leave nothing on floor.
And just for fun
Ahhh, what a sight!