“Uptown Funk” no longer rules the Billboard Hot 100, but Mark Ronson’s “Feel Right” video might push him back to the top. First, it was a standout on his last album, Uptown Special. Plus, Mystikal is in the fray, channeling some degree of James Brown and slapping on his form of smut. The star of the video is neither of them, nor is it Bruno Mars and his blink-and-you’ll-miss-him cameo. It’s the kid onstage at his talent show, who is laughed at for his dedication (“to all the player-hating teachers that won’t let a little gangsta shine”), called a nerd, but rocks so hard that he is graced with a standing O. Shine on, little gangsta. Shine on.