Every Saturday night at 7 p.m., Jack FM plays nothing but wall-to-wall, back-to-back, nose-to-nose party tunes.

You already knew that, but what you might not know is that a recent study shows that those who listen to upbeat, fun music burn three times more energy in the same time frame as those who listen to mellow tunes.

So, not only is the Party Train a gas, but it's also good for you...sort of.

The Jack FM Party Train, every Saturday night starting at 7 p.m.

(Photo by John Moore/Getty Images)