John Cena is seen fighting back tears as he is surprised by a group of fans he helped inspire in a new promo for Cricket Wireless.

The clip, released Monday, features the WWE Superstar and "American Grit" host reading letters from fans about how his message of "Never Give Up" resonated with them during hard times in their lives.

Cena messages feature fans thanking him for helping them through the adoption of a child, near-death experiences and cancer.

As the 16-time heavyweight champion read the letters out loud, the fans listened in secret backstage before they surprised Cena to show their appreciation.

The group also presents the 40-year-old with a Life Changer trophy.

"Just remember that you guys do the work," Cena says to the group of fans.

"Don't think that you're the only one who's up against it, and don't think you're the only one who [has] challenges to face every day. You all lead by example, and I mean it when I say it: Don't ever give up."