Bruce Jenner is allegedly transitioning into a woman. He’s sparked speculation by making changes to his appearance, such as growing out his hair, shaving his Adam’s apple and wearing colorful nail polish.

But ‘In Touch’ has unearthed photos of his debut as a woman — back in 1981!

The former Olympian was 31-years-old when he donned a dress, heels and a wig at a sketch comedy special, ‘Bob Hope’s All-Star Comedy Look at the Fall Season: It’s Still Free and Worth It!’

bruce jenner

Bruce performing, left, as one of “The Mandrakes.”

On the TV special, Bruce, Bob Hope and NFL star Merlin Olsen impersonated 1970s act The Mandrall Sisters, calling themselves “The Mandrakes.”

An insider says the television special was the perfect opportunity for Bruce to finally express his true self.

“He loved dressing up in women’s clothes, but he always had to hide it,” the insider tells ‘In Touch.'

READ MORE: Doctor Says Sex Change “Could Kill” Bruce Jenner

The source explains that during the sketch, “He could get away with being who he really wanted to be in front of millions of people. It was frightening, but also very exciting for him. He was more than happy to do it.”

For more on Bruce’s female debut — and to see more behind-the-scenes look of him getting into character — pick up ‘In Touch Weekly,’ on newsstands now!