Make that a trike, not a bike!

We've already seen Paris Hilton, Simon Cowell and Justin Bieber on motorized tricycles, and yesterday Miley Cyrus and Amber Rose were the latest celebs to hop on their Can-Am Spyder Roadsters and toot around town.

Both of the ladies had gun-metal grey trikes (and sexy outfits!), and Miley reportedly received the vehicle as a present for her 21st birthday last year from her dad Billy Ray Cyrus. The trikes have a single rear drive wheel and two wheels in front for steering, with front and rear brakes which are powered by the same foot pedal.

The base price for the ride is around $22,000 ... it's not exactly a Maybach, but it's still a pretty fancy toy!