What are some songs that help you get motivated, when you have lots of stuff that you need to do?

Lately I've been listening to these two songs to help get me pumped up and ready to tackle all the things I need to do, and the challenges that are ahead of me:

Trooper - Raise a Little Hell
[youtube=https://www.youtube.com/watch?v=roqoA08QdbA]

And the theme from the first Rocky movie
[youtube=https://www.youtube.com/watch?v=I33u_EHLI3w]

Can you think of any more?