We've all beared witness to Miley Cyrus' wild antics on stage and among paparazzi photos, but an insider close to the singer says that she's more experimental behind closed doors.

Since her split from fiance Liam Hemsworth in September, the "Adore You" singer has been experiencing the single life to the fullest. "She’s been experimenting with women and even brags that she’s had threesomes," one source close to Cyrus said.

Cyrus has recently been linked to Twilight actor Kellan Lutz and her producer, Mike WILL Made It. An insider, however, says that Cyrus isn't limited in the gender of her romantic partners, claiming that the 21-year-old "is definitely bisexual. She has women over to her house all the time and hooks up with them. Lately she is more interested in women than men. She was completely brokenhearted after Liam and is kind of over men for the time being. I wouldn't be surprised if a woman came out and said she has hooked up with her soon."

Miley is expected to perform tonight in Times Square for the famous New Year's Eve Ball Drop.