Newly Single Miley Dances in Tiny Bikini [PHOTOS & VIDEO]

MILEY CYRUS and LIAM HEMSWORTH have split after 10 years together, but just 8 months of marriage. Miley's rep said, quote, "They have decided this is what's best while they both focus on themselves and [their] careers.

Apparently, Miley has already moved on. She was spotted on a yacht in Italy making out with . . . A WOMAN. Her name is Kaitlynn Carter, and she's the ex of CAITLYN JENNER's son Brody. They broke up last week.

Miley isn't just kissing girls in Italy. She also posted videos of herself dancing in a bikini