Charm Crowd

You attempt to charm a crowd. This spell will only effect targets who have decided to watch a show. All targets must make a Wisdom saving throw. They can choose to willingly fail the throw to enjoy the show. If they fail, they are charmed by those on the stage until the spell ends or until you or your companions do anything harmful to them. The charmed creatures suspend their disbelief and are carried away by the show: all performance checks made to the charmed crowd are done with advantage and gain a plus +5 to the roll. When the spell ends, the creatures knows they were charmed by you, but might like that. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, performance checks can re-roll 1s. For every level above 3rd, the performance check gains an additional +5 to the roll.