Jay-Z and Beyoncé have kept their relationship out of the spotlight, but Mr. Carter acknowledges his superstar wife in a commercial for Duracell Powermat. The Roc Nation mogul, who serves as an investment partner in the company, makes a cameo in the black-and-white clip.

A young man keeps his iPhone charged throughout the day using the Powermat. While at the club, a phone rings and the caller ID says “B.” He reaches out to pick it up, but it turns out to be Jay-Z’s phone. Sorry dude.