The ALS Ice Bucket Challenge continued tonight in Detroit during Eminem and Rihanna's "Monster" tour. Em was originally called on to complete the challenge by Dr. Dre earlier this week, and after having Rihanna assist him by dumping the water on his head on stage, he then called out RiRi to go next. She was of course a good sport and completed the challenge, which has raised millions of dollars for ALS research in just this month alone.

Em and Rihanna now join the growing list of celebrities to complete the task, which includes Drake, Chris Brown, LeBron James, and many more.