Arizona was the 48th state to join the Union in 1912.  So their centennial celebration is coming up next year in 2012.  They've adopted Dierks Bentley's song "Home" as their official celebration song.

He didn't intend to write it as an anthem for Arizona, but considering he's from Phoenix, it makes total sense to use it.  According to Yahoo Music, he actually wrote it shortly after the shooting that occurred in Tuscon where Gabriel Giffords nearly lost her life.  He told NPR's  All Things Considered, he wrote it for all Americans.

 "It's such a diverse country, and you want something that reaches out to everybody."