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Liam Hemsworth, Miley Cyrus

FameFlynetUK/FAMEFLYNET PICTURES; Palace Lee/PacificCoastNews.com

It looks like the newly single party bug hasn't hit Miley Cyrus.

While some people might choose to go out to the clubs (or head to Las Vegas) after a breakup (not to mention calling off an engagement), the pop singer seems to be doing the complete opposite.

A source tells E! News that since Miley's split from Liam Hemsworth, she's just been spending quiet time at home with the family and staying low key.

But don't worry, the source also adds that although the celeb has been sad about calling it quits with the actor, she'll be OK.

Earlier today, E! News learned that the star "hasn't decided" what she's going to do with the 3.5-carat diamond ring from jeweler extraordinaire Neil Lane, which the Hunger Games star gave to the "Wrecking Ball" singer when he popped the question back in May of 2012.

Regardless, the source told us that the 20-year-old pop star is "doing good," adding that "she's excited for everyone to focus on her music when the album launches," referring to the forthcoming album Bangerz, which is slated for release on Oct. 8.

In fact, Cyrus is expected to perform at the iHeart Music Festival in Las Vegas this weekend, which will be her first appearance since the big news went public.