Pawan Kalyan doesn't fail to impress his fans this time too. The star actor turned singer this time lent his voice to 'Kodakaa Koteswar Rao', a catchy song from his upcoming film Agnyaathavaasi. Pawan Kalyan was seen enjoying while singing the song. The song is going viral on social media after the makers released the video of the song and it already crossed 2 million mark in less than 12 hours. He earlier sang a song for the movie Katamarayudu.The film is set to hit the screens on January 10.