May 8th marks South Korea's national celebration of Parents' Day and the members of TEEN TOP made sure to show their gratitude to their parents.

On May 8th, TEEN TOP uploaded a photo on their me2day and Twitter accounts of them holding carnation flowers in celebration of Parent's Day.

Along with the photo they wrote, "You put all your suffering aside when you gave birth to me and did all you could to take care of me day and night. Thank you mom and dad~ we will continue to be hard-working sons."

They continued, "Mom and Dad, you know your six sons love you very very much right? We were too shy to say this before but we thank you with a big hug today! I love you!"

Fans who saw their post commented, "I should go tell my parents I love them in the morning", "The parents must be so happy to have such loving sons from TEEN TOP", and "Their sweet gesture makes you rethink about your parent's love."

Source & Image: Newsen via Nate