Bruno Mars' Grammy arrived in a pizza box

Bruno Mars' Grammy Award for Best Male Pop Vocal Performance arrived at the singer's Hollywood Hills home last month (Aug13) in a pizza box.

Sources tell Life & Style magazine the Grenade singer was stumped when the extra-large Domino's delivery arrived at his door - because he hadn't ordered a pizza.

A pal says, "Pizza places give tickets away for his concerts all the time, so he thought maybe someone had sent him a free pizza.

"He was really happy to finally have his Grammy because he worked so hard for it, but it also left him hungry for pizza!"

It is not clear why Grammy bosses chose to send him his official trophy in a pizza box.