No. 5

Chanel No. 5 was the first fragrance from Parisian couturier Gabrielle "Coco" Chanel, and has been on sale continually since its introduction in 1921. It has been described as "the world's most legendary fragrance", and remains the company's most famous perfume.

The company estimates that a bottle is sold worldwide every 55 seconds.

According to one story of the creation of Chanel No. 5, Coco Chanel commissioned the renowned perfumer Ernest Beaux to make six perfumes for her choosing. They were labeled No. 1, No. 2, etc. through No. 6. It was bottle No. 5 that was to Chanel's liking and became the chosen formula. The number "5" was also her lucky number.

The latest commercial, staring Audrey Tautou: