Sydney-born children's entertainer Anthony Field, known as the Blue Wiggle, injured himself colliding with a revolving door and was taken to the Tuft Medical Centre in Boston.
Field and his fellow Wiggles had just finished the group's tour of the US when the accident happened.
The 55-year-old, who is the group's only original member and has an estimated worth of $20 million, required 12 facial stitches.
He took to Instagram to reassure fans he was feeling better after "walking the wrong way" into the door.
Field also thanked the paramedics and the medical staff who treated him.