Watch: Keith Urban tweeted Demi Lovato what?!

American pop star Demi Lovato has plenty of Aussie fans, but she didn't count on Keith Urban being one of them.

Speaking to TheFIX on her latest trip Down Under, the 22-year-old recalled her "freak-out" over a surprise tweet from Keith himself. What did he say? Watch our interview above!

The former Disney star also explained her "liberating" sexy new image and gave us her take on the suggestive "taste for a cherry" line in her new single 'Cool For The Summer'. Oooh, so that's what it means…

Demi's 'Cool For The Summer' is out now.

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Interview by Adam Bub. Video edited by Tara Fedoriw-Morris.

Check out Demi's performance on The VoiceThe Voice.