“Grenade” is the second single from Bruno Mars' debut album Doo-Wops & Hooligans.

In an interview with Idolator, Bruno explained the backstory of how the song was created and what it meant for him to sing the song:

I was with my friend Benny Blanco (very well-known songwriter) and he was playing me some songs, and he played me this song that had a lyric like [the one in “Grenade”]… he said, this band is not signed, this is a CD that wasn’t released. I said to Benny, I can relate to that so much, I want to take that [song] and make it my own. He was in contact with the dude, and I started writing my version, basically. It’s a heartbreaking, heartbreak song, and I think everyone can relate to that. You’re so in love with this woman and you don’t understand, “ What am I doing wrong? What am I not giving to you? I’ll go as far as putting as putting a bullet in my brain for you, and why can’t I get that kind of love in return?”