Alors on danse

"Alors on danse" (So We Dance) was released in September 2009 in Belgium and in February 2010 in the rest of Europe. The song reached number one in Belgium, Albania, Austria, Bulgaria, the Czech Republic, Denmark, Finland, France, Germany, Greece, Italy, Luxembourg, the Netherlands, Poland, Romania, Russia, Slovakia, Switzerland and Turkey, and also reached number one on the European Hot 100 Singles.

The song also became a success in North America, as on 1 April 2010, "Alors on danse" was released in Canada, receiving airplay in Québec from NRJ Radio stations throughout the province, as well as CKOI-FM. Four months after the European release, almost 1 million copies worldwide were sold.

The song spent 57 weeks on the German Singles Chart making it the 40th song to spend 1 year or longer on that chart and the song with the 31st longest run. According to Francophonie Diffusion, "Alors on danse" was the most-played Francophone single worldwide of 2010. As of July 2014, it was the 83rd best-selling single of the 21st century in France, with 334,000 units sold.