Washington, June 16 : Nicole Kidman and her country star husband Keith Urban performed a duet at the children's hospital recently in their native Australia, it has been revealed.

The video was posted on YouTube, showed Urban and Kidman greeting the staff; patients and their family at the Monash Children's Hospital in Melbourne and singing classic hymn Amazing Grace, Contactmusic reported.

The couple stood in the middle of a group and he strummed on the guitar and Kidman sang along with the lyrics.

The last time the superstar couple performed in public together was at the 2010 G'Day Usa gala in Los Angeles, where they sang they Australian rock band Men At Work's 1981 hit Down Under.(ANI)