premise: Macklemore works with Ryan Lewis.
hypothesis: Macklemore . He has significantly collaborated with producer Ryan Lewis as Macklemore & Ryan Lewis . Macklemore and Ryan Lewis 's single `` Thrift Shop '' reached number one on the U.S. Billboard Hot 100 in 2013 . Ryan Lewis . In 2006 , Lewis befriended rapper Macklemore on Myspace and soon after became the behind-the-scenes partner of a successful duo , producing , recording , engineering and mixing all of the duo 's music , as well as directing the music videos for `` Same Love '' , `` Thrift Shop '' , `` And We Danced '' , `` Otherside ( Remix ) '' , `` Ca n't Hold Us '' , `` Irish Celebration '' , `` My Oh My '' , `` Victory Lap '' , `` Downtown '' `` Brad Pitt 's Cousin '' and `` White Walls '' and designing promotional graphics .