Miley Cyrus is still engaged to Liam Hemsworth, not dating Justin Bieber

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Miley Cyrus is very efficient when it comes to debunking rumors about her. One phone interview with a radio show, and Cyrus managed to confirm her continued engagement to Liam Hemsworth, deny any fooling around with Justin Bieber, and respond to Amanda Bynes' latest Twitter attack.

That's a lot for one interview.

Cyrus did her bit to shut down the rumor mills when she called into Washington, DC's "The Kane Show" on Hot 99.5 on Wednesday (June 12). Although the interview was meant to promote the singer's newest single, "We Can't Stop," Miley seemed fine answering questions of a more gossipy nature.

Impressively, Cyrus shot down the Bieber rumor and insisted on her engagement in a single answer. When asked about photos implying she was flirting with Bieber at a party over the weekend, Cyrus replied simply, "I'm engaged! That's impossible." omg! Celeb News has backed this up with sources who said the party was just a bunch of friends having fun.

Reports also indicate that Cyrus and Bieber -- who are old friends -- are collaborating on a project as well.

The topic of Amanda Bynes got a little more of a comment from Cyrus. "I don't want to add any fuel to that fire, because it's really so sad to me," Miley said. "I was rooting for her comeback until she started attacking me. I just thought it was hilarious she mentioned my name the moment I was the worldwide trending topic on Twitter. It's just funny."

That Miley Cyrus is a smart girl.

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