JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news.†Click here to buy your tickets now, before they sell out!
She tells COSMO, "That audition was so uncomfortable! It's exactly what you thought it would be: a big monologue but very, very sexual ... there were some things that I was so embarrassed to be reading out loud, but it's one of those things where you have to commit wholeheartedly or you're going to make a fool of yourself."
The September issue of COSMO hits shelves on August 12.¬†Check out her cover below!