Miley Cyrus Says Co-Star Liam Hemsworth Is Her Best Friend

'I've never gotten along with someone so well,' she tells 'Seventeen' of 'The Last Song' star.

[artist id="2408193"]Miley Cyrus[/artist] isn't exactly denying rumors that she's dating Liam Hemsworth, her Australian co-star in [movie id="423507"]"The Last Song"[/movie] (and the guy who may or may not have encouraged her to [article id="1623411"]quit Twitter[/article]), but the soon-to-be 17-year-old singer/actress says that they're definitely BFFs.

"It sucks when your personal life becomes public," she said in the December/January issue of Seventeen magazine. "So I'm finding ways to make my personal and private life more of my life -- which is one of the reasons why I deleted my Twitter. We've decided that any type of relationship that we have, we will always just keep it very DL. First and foremost, we are best friends, so that's what I tell people all the time."

Whether or not they are dating, she did say that Hemsworth has the ability to just make her feel really good about herself. "All you want is for one person to say, 'You did a really good job today.' Or 'You look really beautiful,' or 'I was really moved by that.' You just want one person to make you feel good about something you're doing," she explained. "Liam has been a big part of that."

Cyrus said that Liam's support on the set of [article id="1622130"]"Last Song," which opens in April 2010[/article], helped her take on a more mature role than her "Hannah Montana" body of work.

"I've never gotten along with someone so well," she said. "I was a little anxious about making this movie; I wanted everything to be perfect. To go on set and feel insecure was a totally new element for me. But he felt the same way. He admitted his insecurities, and it was really nice to have someone who understands me for once."

This nurturing work relationship almost never happened, Cyrus revealed. When she heard a rumor that he didn't really want the role, she was ready to believe the worst of him at their first audition. "I'm thinking, 'Here's this guy, he's amazingly good-looking, super-confident, and he doesn't realize how blessed he is to be in this room, because I know how blessed I am,' " she recalled. "Then I started talking with him, and he was just the most genuinely precious, sweet person. And the second audition comes around, and the chemistry was instant. From the time he walked in that door and we saw each other again, we [both] lit up, and we were excited to get to work and learn together."

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