Rap sensation Macklemore and Ryan Lewis whipped 15,000 screaming teenagers into a frenzy at the U.S. debut of We Day, held March 27 at Key Arena in Seattle. (SEE PHOTOS)

The Seattle-based duo performed the smash hit “Thrift Shop” along with “Can’t Hold Us.” They were the surprise final act of the daylong gathering in which students gain admission through community service.

Billboard magazine reports that “Thrift Shop” – an ode to secondhand clothing with an irresistible saxophone hook – has returned to the top spot on the Hot 100 chart for a fifth cumulative week.

PHOTOS

Check out a slideshow of Macklemore and Ryan Lewis below or click here.