It's going down, y'all: Pitbull ft. Ke$ha's massive club-banger "Timber" is finally at the no.1 spot on the Billboard Hot 100 chart. That's right, another female/male pop star pairing has officially stepped down to the number 3 spot — Eminem ft. Rihanna's "The Monster" — after reigning supreme for four weeks. You'd better move, you'd better dance! Em & RiRi's "monster"-sized jam is definitely a hit, but didn't have the chops to keep its position on the top of the Hot 100. Who snuck in to the no.2 spot on the chart, though? It's none other than OneRepublic with their catchy hit "Counting Stars", which is all about chasing your dreams, not cash. For now, though, we're just going make a night we won't remember and blast Pitbull & Ke$ha's #1 jam. Watch the music video for "Timber" after the jump.

Artists: Ke$ha, Pitbull

Tags: ,