Eminem and Rihanna finally wrapped up their successful "The Monster" joint summer tour by taking the viral Ice Bucket Challenge to raise money and awareness for ALS research.

The blond emcee was previously nominated by Dr. Dre to get drenched in freezing water and responded via Twitter that he will accept the challenge:

As Slim Shady was walking off the stage with RiRi after their sixth and final concert at Comerica Park in his hometown of Detroit on Saturday night, Mr. Porter stopped them and reminded of his mentor's recent nomination.

Em then found himself sitting in a chair while letting the Barbadian singer pour down a bucket of slushy ice water over his head. After getting soaked, he jumped out and immediately challenged Mr. Porter and then his "Love the Way You Lie" collaborator.

"Detroit, what you think? Should I do it?" the "Pour It Up" singer asked the sold-out crowd of 45,000. "I'm from the islands; I don't do this ice sh*t! This ice sh*t doesn't work for me." However, she had no choice but to take on the challenge, as Marshall Mathers' band appropriately played Vanilla Ice's hit "Ice Ice Baby" in the background.

The "MMLP2" rapper then took to his Facebook page to post the video evidence of taking the trending challenge, nominating his "Berzerk" producer Rick Rubin. "Challenge completed Dr. Dre. You're up next Rick Rubin," he wrote. "Thanks to Mr. Porter and Rihanna for joining already. #ALSIceBucketChallenge #TheMonsterTour."

Now that their tour has ended, Eminem moves on to the Austin City Limits Music Festival on Oct. 4 and 11, while Rihanna resumes working on her highly anticipated upcoming eighth studio album.