What are qualifications for a Champion rating

I have been Dirty Harry for a while. What would move me up to Champion

I rather enjoy Dirty Harry lol it has to do with the badges you earn. Go look at your badges and
you will see which ones you have to get. Click on them and for instance it will say …play 2 sngs at the same time ect

is Champion higher than Dirty Harry? How many are there and what is the order highest to the lowest