BILLY RAY NOT HAPPY ABOUT MILEY’s NEW HERO

Miley Cyrus

The new truce between MILEY CYRUS and her dad BILLY RAY may be blown up by her latest celebrity "obsession" — Charlie Sheen!

The former "Hannah Montana" star and the troubled "Two and a Half Men" actor, 45, are now BFFs on Twitter, but Billy Ray worries Miley is setting a bad example for her young fans, insiders say.

On April 3, Miley gushed on her Twitter account @gypsyhearttour: "Do not fear…the Sheenius is here! I'm not gonna lie. I came back to twitter for 2 reasons. My fans and to follow Charlie Sheen."

The drug-addled actor with a penchant for hookers replied: "Dear Miley, Welcome back to Twitter! Always felt you were epic! Now you proved it! Thanks for the love."

Miley, 18, replied: "I always felt the same about you! You have taught me everything I know about WINNING. Duh!"

But Billy Ray – who recently mended fences with his famous daughter after publicly blasting her for being caught smoking the herb salvia on tape – thinks she's being irresponsible, sources say.

"Billy Ray knows that Miley is probably just having some fun, but he worries that her young followers might not be in on the joke," a close source told The ENQUIRER.

ALL the details are in the new issue – on sale now.