Bruno Mars' big brother hung up his badge as a police officer to play drums with the Grenade hitmaker.
Eric Hernandez was 10 years in the force when his sibling asked him to join him on the road and in the studio.
He tells Rolling Stone magazine, "I was like, 'If I don't give this up and I'm watching some other guy play drums for my brother, that's going to eat me up."
And Hernandez is extremely proud of his chart-topping brother: "I wish I had his swag. I'm actually taking tips from that little guy."