 Cyrus , dressed as Montana , premiered " Let 's Get Crazy " , along with eight other songs , at the concert taping for the third season of Hannah Montana , which was set on October 10 in Irvine , California at the Verizon Wireless Amphitheatre . The performance began with Montana , in a T @-@ shirt with a pink star , zebra @-@ patterned skirt , tennis shoes and metallic jacket , coming out from behind a giant mirror ball . She then roamed the stage singing the number . The performance was later premiered on July 1 , 2009 on Disney Channel to promote Hannah Montana 3 . 
