Beyoncé
Beyoncé has worked with Tommy Hilfiger for the fragrances True Star (singing a cover version of "Wishing on a Star") and True Star Gold; she also promoted Emporio Armani's Diamonds fragrance in 2007. Beyoncé launched her first official fragrance, Heat in 2010. The commercial, which featured the 1956 song "Fever", was shown after the water shed in the United Kingdom as it begins with an image of Beyoncé appearing to lie naked in a room. In February 2011, Beyoncé launched her second fragrance, Heat Rush. Beyoncé's third fragrance, Pulse, was launched in September 2011. In 2013, The Mrs. Carter Show Limited Edition version of Heat was released. The six editions of Heat are the world's best-selling celebrity fragrance line, with sales of over $400 million.

Q: How many editions of Heat have been launched?
six editions