Blink-182 announces their reunion

At the 51st Grammy Awards ceremony on February 8, 2009, DeLonge, Hoppus, and Barker appeared onstage together for the first time since December 2004.

Barker announced the band's reformation, stating that "we used to play music together, and we decided we're going to play music together again", with Hoppus adding "Blink-182 is back!" Expanding on the announcement on their website, the band stated "To put it simply, We're back. We mean, really back. Picking up where we left off and then some. In the studio writing and recording a new album. Preparing to tour the world yet again. Friendships reformed." Blink-182 embarked on a reunion tour of North America from July to October 2009, supported by Weezer and Fall Out Boy. A European festival tour followed from August to September 2010.