Original Description:

Based off the numerous kids I saw while converting my friend's old home videos (one of these videos included a party that took place at a baby shower. There was cake, balloons, musical chairs, and dancing).

I'd imagine she's dancing either to https://www.youtube.com/watch?v=0hFpiZAGMtA or https://www.youtube.com/watch?v=-E_sC0Mp3KA