I listen to a lot of instrumentals and epic trailer type music (Elephant Music, Two Steps from Hell/Thomas Bergerson), but it can be too stimulating sometimes so I'll just put on ADHD music to get in the zone.
As far as songs with lyrics, I've taken it a step further and recently downloaded some songs and changed the pitch to match my MC's voice. Really gets me in the mind of the character and excited about future events.
(songs like "Dies Irae" by Chant of the Mystics, "Light Within", "Come As You Are", "Till Daylight", all three by Nathan Pacheco are among my absolute favorites so far.)