If you are a celebrity, you need to launch a perfume brand in your name... that is the rule! At least that is what celebrities all around us seem to be saying.

There are not too many stars out there who have not launched perfumes in his/her name. Huge billboards are commissioned... advertisements given and then there is the official launch. Of course, during the launch the celebrity poses with the perfume... there is the inevitable signing of autographs and explanations of how the fragrance came to be... and then sky-high sales. An example - when Beyonce launched hers, she said: "this was my first fragrance, and I wanted to make sure that it was something I would love forever."

The latest to jump on the bandwagon was Madonna, with her "Truth or Dare" range. Meanwhile, earlier, models, actors, actresses and singers like Jennifer Aniston, Beyonce, Usher, Victoria Beckham, Rihanna, Paris Hilton, Antonio Banderas, Sarah Jessica Parker, Katy Perry, Kelly Brookes, Kim Kardashian, Justin Beiber, Halle Berry and Heidi Klum have all followed suit.

Aniston and Brooke branded their perfumes with their own names, while Australian pop star Kylie Minogue launched one called "Darling". Bieber's is "Someday... Klum called hers "Shine"... Rihanna "Reb'l fleur"... Perry "Purr" and Berry "Reveal"

As the general trend is, the launch of a perfume is a self-promotion campaign for the celebrity - meaning that these products do not have a long shelf-life. The only exception is "White Diamonds", endorsed by former Hollywood diva Elizabeth Taylor, which survived 20 years after its introduction.

After the launch of the perfume, or sometimes before, comes the clothing line on their name. We have many like Victoria Beckham who has reached that level.

Finally, According to Celebrity Scents, Kate Moss is soon to launch her brand. Kanye West is next in life, probably his inspiration comes from his new girl friend Kim Kardashian. Rihanna is all set to launch yet another one.The site also quotes Perry as saying: "I'm not embarrassed to say that I went out and bought [Beyoncé Knowles' first scent] Heat and Kim Kardashian's scent earlier this year. I've worn Clinique Happy, Ralph Lauren's Romance and Chanel's Coco Mademoiselle."