She's thankful for the man behind the magic!

Caitlyn Jenner is now the world's most famous transgender woman, and she has nothing but gratitude for Dr. Harrison Lee, the man that made her whole transformation happen. The former Olympian gifted her plastic surgeon with an autographed copy of her iconic Vanity Fair cover, and posed for her first selfie with the doc. "To Harrison, Great Job Thank you so much Caitlyn Jenner," she wrote on the magazine.

Lee, along with Dr. Gary J. Alter, performed the facial and body surgeries that were necessary for Bruce to become Caitlyn, and they couldn't be happier with their work. "She's extremely happy with the results, and we are too," Dr. Alter told The Daily News. "We knew it would be a long procedure and everything was planned ahead of time, and we're very fortunate that everything has gone very well," he added.

As for Dr. Lee, he admits he had a few nerves working on such a famous client, who he knew would be critiqued by the masses. "I entered with some trepidation of course. I figured it was gonna be very challenging because of her celebrity status and the fact that she's going to finally expose herself for (who) she is, and it'll be one of the most judged faces on the planet," he explained.

Caitlyn is adjusting nicely to her new identity, and is keeping busy filming her docuseries. We caught her stopped by the LGBT center in Hollywood yesterday, and then stopping for grub at Jack in the Box. Now that she's a lady, she might want to think twice before eating fast food. Gotta fit into those skinny jeans!