of December 4, 2012. It was originally expected to be released near the end of 2011 but the delay between albums was because Kesha wanted to try to make an album that could shift the sound of pop music into a more rock direction. While being interviewed by the Calgary Herald she explained the delay and elaborated on this, stating: "I want to take enough time to make sure it's the reinvention of pop music. That's the ultimate goal, to reinvent pop music. So I'm planning on taking as much time as I need, but May sounds about right." Touring In the summer of 2013, Kesha embarked on a co-headlined tour with Pitbull. The tour, North American Tour 2013, travelled across North America, hitting venues in the United States and Canada. Since the joint tour did not cover any places outside of the US and Canada, Kesha decided to extend her tour and add more dates in other countries. The Warrior Tour covers many places in Europe, venues throughout the US, and select places in Asia. Many of the dates are parts of festivals and fairs such as Live at the Marquee Festival in Cork, Ireland, the Wireless Festival in London, England, and the Illinois State Fair in Springfield, Illinois. Before the main tour, Kesha performed many promotional tour dates throughout late 2012 and early 2013. Those dates include stadium and TV concerts in Europe, America, Australia, and Asia in August, October, and November 2012, music festival performances in America in December 2012, more TV concerts, special music festival performances, and normal concerts in January, and February 2013 in Asia and America. Promotional Tour Dates Singles The album's lead single, "Die Young" was released on September 25, 2012. The track was soon uploaded to Kesha's BMI following the Kesha's announcement of the single, and was co-written by Fun. lead singer Nate Ruess. Co-producer Benny Blanco described the track as "old hippie rock", while Kesha described the track as "her favourite of the album". A 35-second music video teaser was uploaded on September 12, 2012, onto her YouTube page. A second 29-second snippet, featuring Kesha's vocals, was uploaded on September 17, 2012. The same day, Kesha published the single's artwork onto her Twitter. The song premiered and impacted US radio on September 25, 2012. It was released in Europe on November 18, 2012, and the United Kingdom on November 25, 2012,