[bilky asko]

As previously said, they obviously don’t think it is appropriate to do Little Ant & Dec’s bit live when they are only 5 3/4 or 6, I’m not sure why you are so annoyed by this?

By prerecording, it reduces the pressure on them, given them a time of day that means they're likely to be at their most energetic, and reduces the risk of one or both of them not coming out onto the stage for whatever reason.

Incidentally, the Ella Eyre performance was live in the end.