American country-pop sensation Taylor Swift has revealed that breaking up with someone is so useful for songwriting because it gives way to lots of different emotions.

Speaking to Wonderland magazine about the heartbreak experienced when leaving a partner behind, the 'I Knew You Were Trouble' songstress explained that while it is initially a sad feeling that arises it always changes into something else:

"It’s very complex; you’re never feeling just sad. Maybe you wake up and you feel sad, and then you get angry, and then you feel like ‘I’m fine’, and then you feel confident, and then you feel a sense of doubt, and then you’re insecure, and then there’s jealousy, and then you’re back to sad – and then you feel fine again."

Swift was in Las Vegas over the weekend for the Academy of Country Music Awards, but lost out on the title of 'Entertainer of the Year' to Luke Bryan. She also lost out on 'Female Vocalist of the Year' to 'Fastest Girl In Town' superstar, Miranda Lambert. Watch her latest music video, for '22', here: