In one of the Sherlock Holmes movies, Bruce and a girl who was supposed to be a professional singer do “Loch Lomond”. Holmes declares that they are good enough for Royal Albert Hall.
He was right.
> Bruce and a girl who was supposed to be a professional singer do “Loch Lomond” <
Here ya go. It starts at the 51:10 mark.
https://www.youtube.com/watch?v=_2DgG4KWr54