Barron Trump stepped out of a helicopter and instantly became a fashion icon on Sunday. When the president's son emerged from the chopper along with his parents to move into the White House, Barron was wearing a t-shirt with 'The Expert' on the front. J. Crew reported they had sold out of the shirt by Monday. 

"We're sorry. This item has been so popular, it has sold out," J.Crew's website said of the $29.50 shirt.