Recent diamond club inductees Macklemore and Ryan Lewis took part in the American Music Awards extravaganza on Sunday, using their slice of primetime to debut a new song entitled "Kevin." The song, a powerful rebuke to addiction and over-medication in our society, featured a backing string section and gospel choir. Leon Bridges also appeared on the hook, singing "Dr. please, give me a dose of the American dream." Moodily lit to put Macklemore's passionate rapping center stage, the performance was a perfect showcase for his new tune.

As for that diamond club reference, Macklemore and Ryan Lewis recently joined the ranks of Lady Gaga, Justin Bieber, Eminem, and Katy Perry by landing more than 10 million download sales and sales equivalents for their 2012 blockbuster single "Thrift Shop," which sadly did not give the thrift shop industry a boost.

Revisit our recent Macklemore and Ryan Lewis cover story here, and check out the full version of "Kevin" below.