In April 2010, it was announced that in celebration of the band's 20th anniversary, they would release "Croweology", featuring new acoustic recordings of Black Crowes' favorites. The two-disc set would be sold at the price of one as a thank you to fans. In conjunction with the release, the band would also embark on the "Say Goodnight to the Bad Guys" tour, which would stretch from August 2010 – December 2010. The majority of the shows saw the band perform two 90 minute sets, the first acoustic, and the second electric. At the end of the tour, it was announced the band would begin a new hiatus of undetermined length.