Andrea - As Yin stated, Annie and Andrea will be doing a duet when the Five comes back and gets suckered convinced into the games.

Cruz in general - Hahahaha. No. Sorry but they won't touch this with a five foot pole while wearing a hazmat suit. :T

Danielle - Will play the cello in a little music piece her parents and her siblings (except Zemin, he's out of the Deck for now) will be performing.

Tung in general - You bet your butt they'll be joining in! Be it singing, dancing, acting or generally performing there'll be a few of them joining in on the fun. Feel free to NPC them as you want~