Sorting by group count

Hi there, I am trying to sort a list of different values by the group count.
I have a track title and label name in a row.

By grouping by label I get the desired grouping, but not sure how to show the one with most entries up top.

I’ve also added a statistic, with gives me what I want, but again not sure how to sort by highest count.

Am I missing something? I’m still on Developer 2.7 so it might be that, or that I need to use the python script option.

Thanks for any pointers!