Cast Of 'The Lion King' Sing 'Circle Of Life' On A Plane - Video

2 April 2014, 11:08 | Updated: 2 April 2014, 11:27

This actually happened. It is amazing.

After their Brisbane season launch announcement, the Australian cast of the broadway version of Disney's 'The Lion King' caught a flight back to Sydney.

Their fellow passengers were treated to the surprise of a lifetime.

The cast begin to sing 'Circle Of Life' completely impromptu.

"Sit back and enjoy the amazing flash mob," reads the caption by DisneyOnBroadway.

The video has had 2.5 million views in one day.

Watch it above - and don't be afraid to sing along!