Da one
That guy or girl who can make a whole room go absolutely f***ing nuts just by yelling at them.
Yo da one just told us to scream like f***ing maniacs and we did it.
At the party, da one said 'Let's all yell at the cops' and we all did it.
Da one walked in and said 'Let's all chant' and we did it like f***ing fools.