All eyes were glued to the TV on Sunday night during the Super Bowl LVI Pepsi Halftime show, which featured Dr. Dre, Snoop Dogg, Eminem, Mary J. Blige, and Kendrick Lamar scheduled to perform.

50 Cent also made a surprise appearance, but one of the most talked-about moments came when Eminem kneeled while Dr. Dre performed the melody for 2Pac’s “I Ain’t Mad at Cha” in a tribute. There were rumors that the NFL told Eminem not to kneel during his performance, but USA Today reporter Mike Freeman tweeted that “the NFL watched every rehearsal this week and that element was included.” League spokesman Brian McCarthy echoed Freeman’s report.

Social media lit up with mentions of Eminem appearing to kneel in solidarity with Colin Kaepernick, who first took a knee at a 2016 preseason game to protest racial injustice, police brutality, and systemic oppression. Kaepernick has yet to publicly address Eminem’s performance.