Arizona states of Sonora and Baja California. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912, coinciding with Valentine's Day. Historically part of the territory of "Alta California" in New Spain, it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase. Southern Arizona is known for its desert climate, with very hot summers and mild winters.
This Will Be the Death of Us released on July 21. Two days later, a music video was released for "This Will Be the Death of Us". Further dates were added, extending the tour into late August. On September 28, a music video was released for "Summer Jam". Between late September and mid-November, the band supported on Mayday Parade on the AP Fall Ball Tour. In December, the group went on a UK tour. In January and February 2010, the group supported Motion City Soundtrack on their headlining tour of the US, which was followed by performances at Soundwave festival in Australia in February and March. Between