I've found some information about the Ultimate Jam Party! Here's just a few small images of what's in store for the Ultimate Jam. You can see Cadence, CeCe, Rocky and many other rooms too!
Those rooms look awesome! I can't wait to hang out with friends, sing, dance and perform at this party! It's a shame that Club Penguin are advertising Shake It Up. This does not make it enjoyable, as much as I would like to find the two characters.