Christoph Waltz was forced to face his past Tuesday.
The “Horrible Bosses 2” actor, who grew up in Austria, has been acting since his late teens.
Kimmel provided film evidence from Waltz’s past – a 1970s children’s TV program called “Am Dam Des,” showing Waltz singing and dancing, depicting the new year in a form-fitting, rainbow-striped unitard. Waltz lowered his head and covered his eyes as the clip played.
Kimmel asked Waltz to explain the video, which pops up online from time to time.
“Had I known, I wouldn’t have made fun of Boy George,” he said.
Waltz later provided a dramatic interpretation of the “Sesame Street” theme song. Waltz said he “forced” his children to watch the show, a way for them to embrace American culture.
“I still watch it … It’s so entrenched, it’s raw, it’s full of despair, it’s poignant, deep,” he said.
“Are you sure we’re talking about the same show?” Kimmel asked.
“The theme song alone, it haunts me,” he said, before singing a tear-drenched version of the iconic song.