Duo Macklemore & Ryan Lewis, known for their hit "Thrift Shop," will perform Saturday night. Hart says he's a fan of group â¿¿ sort of."I am a fan now 'cause I found out who they were when I realized they were going to be on the show with me. So because of the Internet and the Google search, I Googled them," he said, as others laughed. "I educated myself â¿¿ almost another genius move of mine â¿¿ to think to Google somebody that I didn't know." So is Hart enjoying the group's massive, multiplatinum anthem about buying used clothes? "I didn't hear that. Didn't hear that one. Don't know what that one is," he said. "But I heard some other stuff. Don't really know the titles. But I know (Macklemore's) white â¿¿ from Google." ___ NBC is controlled by Comcast Corp.