The 18-year-old singer-songwriter from Texas first found success at the age of 14 after posting covers on YouTube that won him a huge online following.
With that huge following (and we're talking an impressive 6 million Twitter followers alone) comes plenty of fans, and Austin has opened up about his recent fan encounters!
When asked if he's had any strange fan requests, Austin tells Reveal: "I've had a girl asking if she could stroke my eyebrows. It was weird. There was also another time, which wasn't really a fan request, but I accidentally kissed a girl at a meet and greet!"
Reenacting the scene, Austin explains: "I went to turn to give her a kiss on the cheek and she turned at the same time. That was pretty weird too!" Oops!
During his performance at the Summertime Ball, Austin treated the crowds to a performance of 'Mmm Yeah', which is a collaboration with rapper Pitbull.
Austin pulled off some impressive dance moves and gave a few cheeky winks to members of the crowds.
"I love the UK," Austin continues. "It's great and the girls are beautiful. It's a lot of fun."
So does Austin prefer British or American girls?! "I like girls from all around the world because everyone's different," he tells us.
Austin's new EP, The Secret, is due for release on 30 June.
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Watch Austin's music video for 'All I Ever Need' below: