Rival Sons were the sole support act for Black Sabbath’s headlining shows on The End Tour. The California rock band opened the main tour run, placing its blues-influenced hard rock directly before Sabbath’s farewell performances.
Rival Sons formed in Long Beach, California, in 2008 and were known for a vintage sound shaped by blues rock, classic hard rock and soul. Their style made them a natural pairing with Black Sabbath, whose early records helped define heavy metal while drawing heavily on blues-based guitar and rhythm traditions.
The support arrangement is sometimes confused with festival appearances. Black Sabbath also appeared on festival bills where other acts played, and the special 2016 Ozzfest Meets Knotfest event had a broader lineup. Those occasions do not change the answer for the band’s regular headlining dates on The End Tour.
The tour began in 2016 and ended with Black Sabbath’s final concert in Birmingham on February 4, 2017. Rival Sons were associated with the tour throughout its principal run.