They are singing because they are telling you to go to the Jazz Cafe.
go to the jazz cafe
The mimes show musical notes. they want you to go to the jazz bar
On counterfeit island, if you start at your blimp, go right until you see the clown store. There will be two mimes, one on either side.
The mimes are unnamed. They can be found in the right section of Counterfeit island.
Outside of Bobo's Clown store on poptropica Counterfiet
Ask the dock man he will tell you to go to the mimes. The mimes will show you music notes. Go to the jazz place and go to the right there you see the thief. P.S. It's the person who set you up!
The mimes by the clown shop. They will whistle. That means to go to the jazz club
you have to talk to the mimes and they will motion you to go to the jazz cafe.
You ask the mimes who hum a tune indicating to go to the Jazz Cafe.
You show the picture to the mimes. P.S go on google if you don't know how to beat an island
you ask the mimes and they sing, so you go to the jazz place and find him next to the stage
MASTER MIMES USERNAME IS mastermimecreator3