Proving that the Hampton shows were not a one-off, Phish went on to perform fifteen concerts in June 2009, including two days at Bonnaroo Music Festival. The shows kicked off with the band's first ever performance at Boston's Fenway Park and wrapped up at Alpine Valley in East Troy, Wisconsin on June 20–21. During these dates, several new songs were debuted, as the band was working on their eleventh album, "Joy". These shows marked a return to song-based performance, as the band initially steered away from extended improvisation. The result would be some of the band's longest setlists since the early 1990s.