This is the cover of Somebody That I Used to Know" by Walk off the Earth. The song was originally sung written and recorded by Australian-Belgian singer and songwriter Gotye, featuring New Zealand singer Kimbra.
'Aashiqui 2' starring Aditya Roy Kapoor and Shraddha Kapoor got a decent opening at the box-office courtesy of the anticipation that was built up. And a lot of credit that anticipation goes to the song 'Tum Hi Ho' from the movie. The melodious love song, sung by Arijit Singh had become the new love anthem and was topping every music charts in the country. Here's the full video song of 'Tum Hi Ho'. Enjoy the music!