3 Monkeys Challenge ft Grace Helbig, Mamrie Hart and Hannah Hart

See nothing, hear nothing, & speak nothing. That is the challenge. GMM #1139!
Win Hannah’s Hot Dog painting! http://bit.ly/GMMHotDogPainting
Be sure to check out Grace, Hannah, and Mamrie’s channels!
Grace Helbig: http://youtube.com/itsgrace
Hannah Hart: http://youtube.com/MyHarto
Mamrie Hart: http://youtube.com/YouDeserveADrink
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