The young Brit, who opened up about his teenage booze battle last year (11), plays a drunk in a deserted bar in Slow Club's new video accompanying the track Beginners.
Radcliffe, who jumped at the chance to be part of one of his favourite group's promos, filmed the video at London's Faltering Fullback pub, according to NME.com.
Singer Rebecca Taylor was thrilled when the actor agreed to star in the group's new video: "We'd known Daniel was a fan and found this pretty cool, but then we met him, got to hang out and chat, and now we have him in our video.
"He is one of the most energetic and exciting people to be around and has been committed to getting the video right and for that we are so in awe. He made us realise how lazy we all are when it comes to videos."