“Grenade” is a song by American singer and songwriter Bruno Mars from his debut studio album, Doo-Wops & Hooligans (2010). A pop and R&B ballad, “Grenade” was written and produced by The Smeezingtons (Mars, Phillip Lawrence, Ari Levine) with additional songwriting by Brody Brown, Claude Kelly, and Andrew Wyatt. The song was developed from an unreleased track with similar lyrical themes played by record producer Benny Blanco to Mars. “Grenade” was completely rearranged and re‑recorded two days before the album’s release. The song’s lyrics carry a message of unrequited love and how Mars’ heart was broken, despite his best efforts to show her his love. Initially released as a promotional single on September 28, 2010, it was later announced as the album’s second single, released by Atlantic and Elektra Records.
“Grenade” was well received by critics, praising the vocals and emotional lyrics of the song and also considered it as one of the stand-out tracks on Doo-Wops & Hooligans. The single reached number one in fifteen different countries, giving Mars his third number one single on the Billboard Hot 100, and topping the Canadian Hot 100 for three non-consecutive weeks. “Grenade” was certified seven times platinum by the Recording Industry Association of America (RIAA) and six times by Music Canada (MC). Worldwide, it was the second best selling digital single of 2011 with sales of 10.2 million copies.
A music video for the single, directed by Nabil Elderkin, was released on November 19, 2010. In the video, Mars is seen dragging an upright piano through Los Angeles, by the time he arrives at the home of his beloved, he discovers she is with another man, so he decides to leave and ends up by killing himself. Mars performed “Grenade” on The Doo-Wops & Hooligans Tour (2010–12) and The Moonshine Jungle Tour (2013–14). The song has been covered by a variety of performers. It was nominated for both Song of the Year and Record of the Year at the 54th Annual Grammy Awards.