Eminem takes a knee during Super Bowl halftime show

Eminem took a knee during the star-studded Super Bowl halftime show on Sunday night, becoming one of the most talked about moments of the year's biggest sporting event.

While performing his classic hit "Lose Yourself" on Sunday night, the 15-time Grammy winner got on his knee and held his head. It appeared to be a gesture to free agent quarterback and activist Colin Kaepernick, who led kneeling protests in 2016 during the national anthem to bring attention to police brutality and racial injustice. Kaepernick has maintained he's been kept off of the field because of the protests. 

Since Kaepernick has not been signed by any teams since the 49ers opted not to re-sign him, other players have also taken a knee during the national anthem. In 2017, former President Trump spoke out against the players, saying they were "ruining the game."