The Up! Tour was the second headlining concert tour by Canadian singer-songwriter Shania Twain in support of her fourth studio album Up! (2002). It began on September 25, 2003, in Hamilton, Ontario and finished on July 10, 2004, in Sunrise, Florida. The show reached North America and Europe. According to Billboard magazine, the tour grossed $87 million from 96 reported shows between 2003 and 2004.

"Thank You Baby! " is a song by Canadian singer Shania Twain. It was released as the fifth single from her fourth studio album Up! on August 11, 2003. It was one of two singles, along with "Ka-Ching!", to be exclusively released to Europe. The song was written by Twain and her then-husband Mutt Lange. It was announced onstage by Twain that "Thank You Baby!" would be the next single from Up! at her Kilkenny concert, her first concert since the Come On Over Tour ended in December 1999.