Watch this adorable boy wake up one morning to a Christmas themed costume change. 

Brittany Nicole Smith, from Stanwood, Washington, USA, made an Elf on the Shelf costume for her four-year-old son Chase. 

To preserve the surprise, Brittany dressed Chase up while he slept and only stirred him slightly. 

The following morning, Chase awoke and looked in the mirror to see his whole new outfit, which he loved.