Last week, SS501 member Park Jung Min celebrated his birthday and received many great gifts. Earlier today, he returned the favor to his fans by uploading a video on the Park Jung Min official Facebook page. The video is of Park Jung Min practicing for his Taiwanese fan party back in February. In the video, he's seen learning Taiwanese singer William Wei Li An's 'Yes or No', which he sung for fans at the fan party as a gift. Check out the video below. Source: Park Jung Min Official Facebook Tip: ackwon