New footage from North Korea's birthday celebrations for founding father Kim Il-sung has revealed the extravaganza ended with a bang, showing a mock-up video of missiles striking the United States that drew cheers from the audience and smiles from leader Kim Jong-un.

State television aired footage of a choral performance attended by Kim Jong-un, the elder Kim's grandson, on Sunday, a day after a huge military parade in Pyongyang also dedicated to the 105th birth anniversary of Kim Il-sung.

The singing was followed by footage of the test-firing of a missile in February. In the video, that missile was joined by other missiles shooting into sky, passing over the Pacific and exploding in giant balls of flames in the United States.

The video ended with a picture of the American flag in flames, overlapping row after row of white crosses in a cemetery.

North Korea's missiles were on display during a military parade in Pyongyang. ( Reuters )

"When the performance was over, all the performers and participants in the military parade broke into enthusiastic cheers of 'hurrah!'," state-run KCNA news agency said.

Footage showed Kim Jong-un smiling and waving in return.

"The Dear Supreme Leader waved back to them and congratulated the artistes on their successful performance," KCNA said.

North Korea said in February that it had successfully tested a new type of medium-to-long-range ballistic missile, the Pukguksong-2, propelled by a solid-fuel engine.

Missiles were paraded through the streets. ( Reuters: Damir Sagolj )

During Saturday's military parade it displayed what appeared to be new intercontinental ballistic missiles. A day later it conducted a failed missile test, drawing international condemnation.

North Korea regularly threatens to destroy the United States and amid heightened tension on the Korean peninsula, it has escalated a war of words, warning of full-out nuclear war if Washington takes military action against it.

US Vice-President Mike Pence, on a trip to Asia, has repeatedly warned that the "era of strategic patience" with North Korea is over and on Wednesday said the US would meet any attack with an "overwhelming response".

Reuters