Keith Urban certainly has a soft spot for kids. The Aussie country superstar (and proud dad of two baby girls) has been known to invite his youngest fans on stage to join him for a song or two during his live shows. Keith's first stop on the Australian leg of his Get Closer world tour was no different, as his weekend concert in Adelaide, Australia, included an impromptu duet with a little boy. Watch the video below of a lucky kid named Nathan jamming with his hero on 'Days Go By.' And check out all of Keith's tour dates here.

Here's the complete video from his mum: