It was part of his weekly General Audience, which is well known for welcoming performing arts troupes.
Only last week, the Aquatic Circus put on a show for the pontiff and crowds.
The Vatican has previously said that the circus encourages people going through difficult times to overcome hardship.
In January, he organised the Rony Roller Circus Show to perform a show free of charge for the poor, homeless, refugees and prisoners in Rome.
At the time, the Holy See said the circus was, "with perseverance, commitment and many sacrifices are able to create and give beauty to themselves and to others."
It added: "The gift... may encourage our poorest brethren to overcome the hardships of life, which often seem overwhelming and insurmountable."
