Trevor Noah and Charlize Theron. Picture: Trevor Noah/Instagram

International stars Charlize Theron, Trevor Noah and Chelsea Handler surprised pupils at Oaklands High, Cape Town, with an inspirational talk on Monday.

Noah shared a pic on Instagram captioned: "Thank you Oaklands High and Life Choices for giving us an opportunity to be part of something so amazing. To see how much better a person's life can be if we just invest in people at a young age is inspiring and eye opening. (sic)"

The stars joined Life Choices representatives on Monday morning and chatted to pupils about the importance of life choices.

The celebrity trio even participated in the lesson with the pupils.

Speaking to Kfm, Oaklands High principal Reza Patel says it was a "special" and"inspirational" experience for both the learners and staff.

"It was so special... The staff didn't know about it, I was sworn to confidentiality. It was very inspirational... They came along, participated in the lesson and did some clapping and dancing," he said.

And added that he thought pupils were a bit 'starstruck'.