Video: Eminem and Rihanna Take ALS Ice Bucket Challenge Live on Stage

Eminem and Rihanna capped off their "Monster Tour" with ALS Ice Bucket Challenge. The crowd roared as the Detroit rapper and the Bajan R&B singer got drenched live on stage Saturday, August 23 at Comerica Park in Detroit, Michigan.

RiRi, wearing a black sport bra and neon-green pants with suspenders, did the honor of dumping a bucket of ice cold water on the Slim Shady's head as he took the challenge first. The Barbados singer went next with crew members pouring water on her.