2 Best – Curious, Britney Spears
Britney Spears released the fragrance Curious in 2004, and it was one of the most successful celebrity fragrances ever. Almost every girl in the 2000s had a bottle of it, which sold over 500 million unities in one decade!
The singer is at the top of her game when it comes to perfumes, and no other celebrity has reached her level. Britney Spears has other fragrancies, but Curious is by far the most successful.