When America's "Pop Princess" first agreed to date 5 Seconds of Summer's punk-pop drummer Ashton Irwin, she never knew the situations she would find herself in from both performers dealing with hate to settling feuds among her three new brothers. Can she handle the pressures of dating such an adored Aussie? Can Ashton keep up with Katrina's fast paced lifestyle? Will they clash or can there be harmony between the bass of a soundboard and the beat of a drum?