Wochit News - People Are Applauding Rihanna For Saying No To The NFL And Supporting Colin Kaepernick - According to Business Insider, Rihanna has turned down an offer to headline the Super Bowl halftime show in 2019. The pop diva passed on the offer in a show of solidarity with San Francisco 49ers quarterback Colin Kaepernick. Kaepernick first took a knee during the NFL national anthem in 2016 to call attention to police violence against people of color and racial injustice. The act of taking a knee has sparked a social justice movement that many celebrities and athletes are participating in.