Houston Texans' J.J. Watt came up big for a student when the defensive end made time during his “lunch break” Tuesday to record a fake “energy chip” commercial to help with a school project.

A student at Cryar Intermediate School in Conroe, Texas, had chosen Watt as the celebrity endorser of his make-believe product, Energy Chips, his teacher tweeted, along with a picture of the student’s hand-drawn chip bag.

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Not long after the teacher's tweet, Watt responded: “Had a couple extra minutes during lunch break today, so I figured maybe this would help boost his grade on the project.”

The NFL star appears to hold a bag of “energy chips” that looks similar to the student’s drawing in his self-produced fake commercial, co-starring teammate Will Fuller.

"Oh, hello there, I'm J.J. Watt for the Houston Texans, and when I'm feeling like I'm lacking a little energy, I grab a bag of energy chips,” Watt says. “With 50 percent less sugar, they're nutritious and only one bag a day gives you all the energy you need for the whole day. They keep me hype. Wow. And they're delicious."

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He passes the bag to Fuller, who says he feels energized before he even tries the chips. Watt suggests his teammate try a chip as someone snickers offscreen.

Watt jokingly tweeted they need to work on Fuller’s script.

The teacher later thanked Watt and revealed the student earned an A on the project.

“Definitely have to give an A on this project,” the teacher tweeted. “You made our day and one student extremely excited and also many teachers! Thanks again for doing so much for the future generations!”

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Watt has a charitable reputation, having donated $10,000 to the family of a Wisconsin firefighter who was shot and killed last week responding to a medical call. In 2018, the J.J. Watt Foundation raised $41.6 million to help those affected by Hurrican Harvey.

Fox News' Ryan Gaydos contributed to this report.