It's a point well made but totally denied.
Mr Donegan obviously had talent and knew the song, Tom is Tom and that band of musicians, who do not get any plaudits are fabulous.
I like to think it's impromptu but nevertheless very entertaining and different than other shows.
Not seen it all I will be watching the rest later.
So far after 2 shows there have been some very good singers, I also like it when the judges get up and do an impromptu song, Tom can't help himself but he is a legend.