Bruno Mars gets a makeover from electropop band Passion Pit on the remix to “Grenade,” included on his iTunes release The Grenade Sessions EP. On the electronic remix, the No. 1 hit is revamped into a sparkly upbeat jam, with the gloomy verses replaced by optimistic synthesizers and a slap-happy melody. Check out the new song below, and head over to the digital store for an additional remix from The Hooligans and an acoustic version.