Blink-182 broke into the mainstream with its 1999 album "Enema of the State"—a fast, glossy pop punk record with multiple hit singles. The LP proved enormously successful, shifting over five million units domestically, and three times that number worldwide. It became a time of transition for the group, who performed worldwide in larger venues than before, including amphitheaters, arenas, and stadiums. At the beginning of the album's promotional cycle, the trio were driving from show to show in a van with a trailer attached for merchandise and equipment; by its end, they were traveling by double-decker bus and flying on private jets. Bassist Mark Hoppus recalled that "we had gone from playing small clubs and sleeping on people's floors to headlining amphitheaters and staying in five-star hotels." Guitarist Tom DeLonge, in a band biography, recalled that touring arenas "was amazing, because it was the first time we'd ever done anything that big. I felt like a success story." Drummer Travis Barker, in his memoir "Can I Say", recalled his newfound stardom: "album took us all over the world, for months at a time. We were playing awards shows with [pop stars Britney Spears and Christina Aguilera when we were used to hanging with bands like the Vandals, Unwritten Law, and 7 Seconds."