NEW YORK - Bruce Jenner's transition is complete.

"Call me Caitlyn," declares a headline on the July cover of Vanity Fair, with a photo of a long-haired Jenner in a strapless corset, legs crossed, sitting on a stool. The image was shot by famed celeb photographer Annie Leibovitz. Inside, more images show Caitlyn in gold lame, a black bustier and a cleavage-baring, off-the-shoulder gown.

Caitlyn Jenner, 65, also debuted a new Twitter account with: "I'm so happy after such a long struggle to be living my true self. Welcome to the world Caitlyn. Can't wait for you to get to know her/me."

The account broke a record for fastest time to reach 1 million followers, besting President Barack Obama's new @Potus handle with a mark of 4 hours and 3 minutes, according to Guinness World Records.

Vanity Fair took to Twitter with the cover Monday and said Jenner spoke emotionally about her gender journey: "If I was lying on my deathbed and I had kept this secret and never ever did anything about it, I would be lying there saying, 'You just blew your entire life.'"

The cover comes after Jenner's two-hour ABC interview with Diane Sawyer in which Bruce Jenner confirmed the transition. The much-anticipated "20/20" interview on April 24 was watched by more than 17.1 million viewers.

Prior to the unveiling of Caitlyn, Jenner had said he preferred the pronoun "he," but Vanity Fair contributing editor Buzz Bissinger, who wrote the story, refers to "she."

The Olympian who married and divorced reality show "momager" Kris Jenner has appeared for years on "Keeping Up with the Kardashians." Jenner's own still-untitled docu-series chronicling her transition is scheduled for the same network, E!, beginning July 26.

In addition to the va-va voom corset cover, Vanity Fair released a black-and-white video on the making of the cover.

"Caitlyn doesn't have any secrets," Jenner narrates. "As soon as the Vanity Fair cover comes out, I'm free."

The story describes Jenner's painful recovery from "facial-feminization" surgery in March, a grueling 10-hour procedure that had Jenner briefly second-guessing the decision during a panic attack eased in part with the help of a Los Angeles Gender Center counselor who made a house call. There was also a breast-augmentation procedure.