The identity of the "Teletubbies" sun baby has remained a mystery for nearly 20 years, but the now grown-up baby has outed herself.

Jess Smith, a British college student, spilled her 19-year secret during a truth-telling game with friends. Each person had to say something true about their life that the others would not believe.

"I thought I may as well tell them as I'm going to be spending the next three years with them," Smith told Mirror UK. "My mother is really chuffed."

Smith later confessed her secret to the world on Facebook.

"So I've recently celebrated my 19th birthday and after a lot of thought, I've decided it's time to tell everyone," she wrote, according to Mirror UK. "I used to hide it but after a lot of encouragement from my friends at university, I've gained the confidence to come out with it. I am the sun from Teletubbies."

The 19-year-old dance student at Canterbury Christ Church University acknowledged the others who have tried to claim it was their chubby little face in the sun. She was one who could tell people 'the real story."

A representative for Ragdoll Productions discovered Smith at nine months old when her mother took her to be weighed at Edenbridge Hospital in Kent. Smith was filmed sitting in a high chair so she could look down at the camera while her father played with a teddy bear behind it to make her laugh.

Not knowing how big the British children's program would become, the family was paid £250 ($388.19).

"It was just something a bit different to do and we didn't expect it to be as big as it was," Smith's mother Anji told Mirror. "They just sat her in front of a camera and she just laughed and smiled at her dad. We didn't hear anything until we got a letter when she was 18 months old saying she'd been picked.

Her mother added, "It was really weird seeing her on television."

"Teletubbies" ran between 1997 and 2001 on the BBC. PBS aired the pre-school show starting in 1998 until 2005. Production was cancelled in 2002, but plans for 60 new episodes were announced in June 2014.