Watch Paramore + Stranger Things' Gaten Matarazzo perform 'Misery Business' together live.

Paramore played Barclays Center in New York tonight, and their open invitation to 'Stranger Things' actor Gaten Matarazzo was finally accepted, with him and some of his Work In Progress band-members hopping on-stage to jam out to 'Misery Business' together.

Watch fan-filmed footage of the performance below...

P.S. Read our latest interview with Paramore here.