Crooner

Street performance dates back to antiquity, and occurs all over the world.
Street performance or busking is all about performing in public places, for gratuities, which are generally in the form of money. People engaging in this practice are called street performers, buskers, street musicians, minstrels, or troubadours.
Street performance dates back to antiquity, and occurs all over the world.
Performances can be just about anything that people find entertaining. Performers may do acrobatics, animal tricks, balloon twisting, card tricks, caricatures, clowning, comedy, contortions, escapology, dance, singing, fire skills, flea circus, fortune-telling, juggling, magic, mime, living statue, musical performance, puppeteering, snake charming, storytelling or reciting poetry or prose, street art such as sketching and painting, street theatre, sword swallowing.
It is just as well this singer was on the move, because that meant his collection pot was on the other side of the street.