After slyly hinting at a new project over the weekend, Travis Scott debuted “4×4” at the College Football Playoff National Championship. Scott rapped on the roof of Atlanta’s Mercedes Benz Stadium Sunday, alongside a uniformed marching band. Scott stomped to the brass and synth fused trap song, as the band swung their instruments in unison. One trombone player blew flames into the air. Scott also released “4×4” related merchandise, with 100 percent proceeds donated to Direct Relief’s California Fire Relief.

Earlier this month, songwriter Victory Boyd filed a copyright infringement lawsuit against Scott,...