There is nothing like "Onward Christian Soldiers" to accompany a good cardio workout. You can do it while taking a stroll around the neighborhood, or a trip to the mall. Hopefully you can make this a family event, and do some worthy polyphonic acapella singing along the way.
The work was composed by Sir Authur Sullivan, and while he was known for penning those trivial works with Gilbert while the British still had an "Empire" (i.e. was once great), he ultimately sought redemption with Jesus.