OMG Really? Miley Cyrus Planning “Adult,” “Sexy” Album.

Make It Stop? As if becoming engaged isn't enough of an indication that she's a woman now, Miley Cyrus is now apparently working on some grown-up music as well.  A source tells E! News that Miley is making a new record that's going to be "very adult and sexy and believable." According to the source, Miley is "having fun making music for the first time in her career."

"We are watching a young girl turn into a young woman," explains the source, noting that Miley is working with Pharrell Williams in Miami, and up-and-comer Hit Boy, who's produced tracks for Kanye West, Jay-Z and Eminem. Cyrus' new sound is being described as "Miley 2.0," an industry source tells E!.

Despite all the fun she's having in the studio, the source adds that Miley took some out this week to travel to New Orleans to visit her fiance Liam Hemsworth, who's in that city filming a new movie called Empire State.

The new issue of People magazine reports that Miley's parents, Billy Ray and Tish,are "thrilled" about their daughter's engagement, even though she's only 19.  "They couldn't be happier," says a source. Tish tweeted Thursday, "Wow! All of the LOVE pouring out for Miley and Liam is incredible! So happy for my precious baby girl and the love of her life!"

The Hemsworth family is said to be "equally overjoyed," according to the source.  As for when they'll tie the knot, the source tells People the couple isn't rushing into anything, adding, "It's all very new for them. They're just so in love and so happy that they can take things to the next level."