Later in the day, all of St. Peter's Square shouted birthday wishes up to the Bishop of Rome, as his weekly address to the faithful happened to coincide with his birthday. With the overlap, he didn't even have to worry about whether anyone would show, which is something you think you'd get over as leader of the Catholic Church, but probably not.
As you can see, the divine pizza pie was not round. It was a series of rectangular pizzas cut into rectangular slices, for which there is presumably scriptural precedent.
In the center was a single white candle, which His Holiness adorably blew out.