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Macklemore & Ryan Lewis recently staged an impromptu performance on an NYC bus! The Grammy-nominated duo took a bus full of New Yorkers by surprise with their hit, "Cant Hold Us," and it didn't take long before everyone was clapping along - including the bus driver.

The stunt is part of a promotional campaign for this year's Grammy Awards, which take place Sunday, January 26th on CBS. The video debuted on The Hollywood Reporter's website.

Check out the awesome video:

Macklemore and Ryan Lewis are nominated for seven Grammys, including Album of the Year and Best Rap Album for the Heist and Best New Artist.

(H/T: The Hollywood Reporter)