To add a video for Spike Jones / Pack Up Your Troubles in Your Old Kit Bag and Smile, Smile, Smile (after Asaf & Powell), just enter the video‘s YouTube link:
example) https://www.youtube.com/watch?v=XXXXXXXXXXX
Search YouTube for Spike Jones / Pack Up Your Troubles in Your Old Kit Bag and Smile, Smile, Smile (after Asaf & Powell)