Also known as "The Music Meister Effect". Broadway Force, previously considered a far more stable variation of Toonforce, is a power certain people can tap into, (usually depicted in the Musical Theater genre) by spontaneously breaking into song and dance, causing everyone and everything around them to became bound by it, and compelled to join in.
Characteristics involve the immediate assistance of anything that can understand sound and the level of mastery in Broadway Force may enable whether or not the participants are aware they were just a part of a grand scale musical event, and even if inanimate or deaf objects became bound.
It is unknown whether or not it is a telepathy power, a hypnotic tune, or a magic enchantment, but for everything in between, we have The Broadway Force.
Known users are
Music Meister (Batman: The Brave and the Bold)
Disney Princesses (Disney)
Sirens (Greek mythology)
Michael Jackson (Thriller)
Theresa Cassidy (Marvel Comics)
Most characters in animated kids' movies.