This was their seventh concert tour in support of their sixth studio album Unbreakable (2007) and this was the first Backstreet Boys tour as a quartet without Kevin Richardson who left the group on June 23, 2006.

The tour kicked off in Japan with two sold out concerts in the Tokyo Dome.

It was first shown in MSN "Music in Concert" at 2:00 PM ET/11:00AM PT on June 26, 2008.

The group planned to make it a true world tour, hitting countries that they had not visited in years, along with visiting new countries, including their first stop ever on tour in Russia, Latvia, Lithuania, Estonia, Peru, along with South Africa dates.

The Luxembourg date was suspended after a fire broke out at the venue the afternoon of the performance, no one was seriously injured, but there was damage to the group's wardrobe.