CHRISTINA AGUILERA Back To Basics Tour 2006-07 (Vintage official crew only blue cotton t-shirt, printed with Christina Aguilera, Back To Basics Tour 2006-07 and Crew text all in white on the left breast. This was handed to crew personnel only& were never available to buy as merchandise with only a handful ever being produced. This was worn during the tour but all the print is present and shows little signs of wear)