(You Drive Me) Crazy Tour (also known as Crazy 2k Tour) was the second concert tour by American recording artist Britney Spears. It was launched in support of her studio albums ...Baby One More Time (1999) and Oops!... I Did It Again (2000). The tour was designed as a continuation of the ...Baby One More Time Tour and a prelude to the Oops!... I Did It Again Tour. It was sponsored by Got Milk? and Polaroid.