HiJinks Festival returns to Philadelphia, Pennsylvania on December 27-28, 2025, featuring a powerhouse lineup of electronic dance music headliners including GRiZ, Gryffin, Illenium, and Slander. This two-day electronic music festival showcases 17 artists across dubstep, house, hip hop, and dance genres, with additional performances from Seven Lions, Knock2, Black Tiger Sex Machine, and Kai Wachi. The festival brings together international talent from the United States, Canada, and United Kingdom, making it a premier year-end destination for electronic music fans in the Philadelphia area.