Katy Perry and Celine Dion met each other in Australia! The Witness pop superstar met the “My Heart Will Go On” singer at backstage during her concert on Sunday at Rod Laver Arena in Melbourne, Australia.

Katy Perry and Celine Dion met each other in Australia! The Witness pop superstar met the “My Heart Will Go On” singer at backstage during her concert on Sunday at Rod Laver Arena in Melbourne, Australia.