Bruno Mars was spotted lugging a huge piano through a dark, wet tunnel in Los Angeles Monday afternoon (Oct 11). The R&B singer was filming a scene for the music video for his latest single “Grenades.”

Mars’ debut album Doo Wops & Hooligans hit stores last week and sold 55,000 copies, putting him at #3, behind Toby Keith (71K) and Kenny Chesney (65K), on the Billboard 200 albums chart.

What do you think about the pic and Bruno’s album sales?

Shortly after being arrested in Vegas for cocaine possession, R&B newcomer Bruno Mars is celebrating his debut solo single “Just the Way You Are” reaching the top spot on the Billboard Hot 100 this week just as a new song of his, titled “Grenade” hits the web.

The track is to be featured on the singer’s upcoming debut album Doo-Wops & Hooligans, in stores October 5th. Check out “Grenade” above!