Austin & Ally has been friends since preschool, Now they see each other again at Sonic Boom, Their friends, Dez & Trish, have to keep the Sonic Boom company for Austin's preformance, Austin & Ally has to get some stuff for the preformance, But they didn't tell Ally they were doing it for her birthday, But when the came back they yelled "HAPPY BIRTHDAY" Ally turned 16 years old, Austin preforms "Na, Na, Na (The Vacation Song)" Ally dated Austin after the preformance they kissed in front of everyone, And everyone clapped.