'Neon Lights' superstar Demi Lovato is the latest celebrity to sit down for an interview with Jimmy Fallon and give some 'Unqualified Advice' to curious Tumblr users. 

One fan asked her for the one piece of advice she would give to someone who is about to move away from home to start college: 

"I would say pack a ridiculous amount of clean underwear because I'm assuming, like most people, you won't do your laundry for a while. I don't... whenever... I'm assuming if I went to college I'd never do my laundry."

Another follower quizzed her on what to wear to an ex's wedding and she explained: "You have to wear something so hot because this guy is about to get married and you have to show him or her how much they missed out on. They missed out on you!"

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Watch the interview in full below: