The warm May sun was still high in the sky when a roar echoed out in the streets surrounding St Peter's Square. Robert Prevost becomes first American popePope Leo's first public address from the Vatican balcony - watch in fullWho is the new pope, Robert Prevost? This was a sentiment echoed by many in those last minutes before Pope Leo XIV was announced. By the time Dominique Mamberti - the proto-deacon tasked with delivering the iconic "Habemus Papam" address to the square - appeared on the balcony, St Peter's was full to the brim. A section of the speech delivered in Spanish in which Pope Leo XIV remembered his time in Peru was met with cheers from various pockets of South Americans dotted across the square.