Beyoncé's headlining performance at Coachella in 2019 earned her $4 million.

Coachella brings in about 250,000 each year.

Beyoncé played a bar mitzvah with about 200 people for $2 million.

Shhhh ... Don't tell Cardi B—she only got $500,000 for her bar mitzvah gig.

THE POINT: You don't need a lot of people in your audience to make a lot of money.