The moment a Texas teacher broke down after his students surprised him with a birthday cake went viral (video below).
In a short clip of the incident, English teacher Kyle Simpler walks into his classroom to shouts of "happy birthday" from students.
"Oh my god!" Simpler exclaims as he's led to his desk while students sing "Happy Birthday" to him. One of the students, David Tubig, presents him with a gift from the class and a large blue cake.
Student Saeya Esparza, 16, can be heard saying "awww," as Simpler is overcome with emotion.
"Thank you," he says through tears.
According to Esparza, who uploaded video of the surprise to Twitter, Simpler hadn't had a birthday cake presented to him in about 10 years.
The video quickly went viral, prompting viewers to praise the students for their thoughtful gesture.
"I cried. I think that is beautiful," one viewer wrote. "You made him smile so much and everyone sounds really excited. Good for you guys."
Watch the emotional clip below.