Julianne Hough Bikini Pic -- I Can Stomach Being Single

Since her split with Ryan Seacrest, Julianne Hough has really let herself go ... on vacation.

A little over a month since the former couple announced they'd gone their separate ways, the 24-year-old blonde beauty showed off her single and ready to mingle hot body while enjoying a drink at a hotel in Miami on Friday.

She's back in the dating pool.