Wish you were the owner of the fastest convertible in the world? Well, Dream On, because that title belongs to Aerosmith front man Steven Tyler after he purchased the first, and custom-made, 2012 Hennessey Venom GT Spyder for over $1 million.

Tyler reportedly purchased one of the five Venom GTs made by Hennessey Performance for $1.1 million, according to Complex. Automobile Magazine reported what Steven Tyler paid for his 2012 Hennessey Venom GT Sypder is the equivalent of one dollar for every 60 Aerosmith albums sold in the U.S. since 1971.

But owning what is now known as the fastest car in the world was not good enough for Tyler; The American Idol judge insisted on having Hennessey make one of the cars into a convertible exclusively for him with a built-to-order roadster version with a removable top.

Steven came to us and asked if we could build his Venom GT as a roadster, John Hennessey told Complex. We had to make a few structural changes to our integrated rollcage in order to be able to fit the removable top.

The fastest in the world, the 1,244-horsepower 7.0-litre twin-turbo V8 Venom GT can reach a speed of 200 mph in just 15.9 seconds. The speed is 2.4 seconds faster than the Bugatti Veyron 16.4, according to Complex.

John Hennessey said the company, in the future, will give options for GT models including coupe, hardtop and softtop, according to Automobile Mag.

View the slideshow to see photos of Steven Tyler with his custom 2012 Hennessey Venom GT Spyder.