Stephen Curry turned into an emo boy at the Paramore concert on Monday ... joining the band onstage and belting out "Misery Business" -- and the NBA superstar killed it!!
The four-time champ and his wife, Ayesha -- who just celebrated their 12-year anniversary with a trip to Greece -- made their way to the Chase Center after landing back on U.S. soil ... but Chef Curry was no bystander.
The two-time MVP joined Hayley Williams and the gang in the middle of the concert ... grabbing the mic and showing off his pipes for their most popular song.