Call Me Caitlyn': Bruce Jenner Unveils New Female Self

The former Bruce Jenner has made her long-awaited debut as a transgender woman on the cover of Vanity Fair.

Caitlyn Jenner poses for Annie Leibovitz on the cover of Vanity Fair #CallMeCaitlyn https://t.co/NRyh6R09RR pic.twitter.com/GO1ZgJJKBR

— VANITY FAIR (@VanityFair) June 1, 2015

Jenner has chosen the name Caitlyn and tweeted from a new account after the cover was unveiled Monday afternoon, "I'm so happy after such a long struggle to be living my true self."

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.

— Caitlyn Jenner (@Caitlyn_Jenner) June 1, 2015

Jenner, a former Olympic champion, came out as transgender in April.

“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,’ ” Jenner told Vanity Fair.

In a video featuring a behind-the-scenes look at the photoshoot with photographer Annie Leibovitz, Jenner said: "Bruce always had to tell a lie, he was always living that lie. Every day, he always had a secret, from morning till night.

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