Twerking on Robin Thicke? Hanging naked on a wrecking ball? Those stunts are nothing compared to Miley Cyrus' latest stunt: sky-diving for Rolling Stone! The magazine released a new video of their Oct. 10 cover star going sky-diving (for the first time ever) with contributing editor Josh Eells -- and dropping many F-bombs on the way down.

"If I die," Cyrus told her instructor, Scott Smith, "you guys are so f---ed."

Though the jump was her idea, the 20-year-old singer got a little nervous beforehand. "I'm about to jump out of a mother-f---ing plane," she told the camera. "All for the love of Rolling Stone magazine."

Once in the air on the plane, Cyrus confessed, "I'm f----ing terrified. F--k you, Rolling Stone. F--k you, Rolling Stone magazine . . . I'm f---ing scared."

But soon after she jumped -- strapped onto the front of a sky-diving instructor -- Cyrus got more confident and even stuck her tongue out at the camera. As she was safely floating down from 12,500 feet, the former Disney star relaxed and enjoyed the ride. "I'm happy and I'm finally a bird like I always wanted to be," she told the camera in mid-air. "This is amazing. Beautiful and I'm so happy."

The first thing she did when she landed? Call mom Tish to confirm that she survived the stunt. "One thing about sky diving," Liam Hemsworth's former fiancee said, "you really know who you love, based on who you call."

Watch Cyrus jump out of a plane in the video above!