19: Pink
Grammy-nominated singer Pink has always been a wildcard, but when she proposed to world-famous motocross Carey Hart, it was inevitable she’d get into riding. The singer is well known for riding her Buell sports bike model. She has also been seen more than once on a few motocross bikes. She has been well-documented as saying that some girls like diamonds yet she likes heavy metal and carbon fiber (via Brain Bucket).

Her motorcycle and car collection aren’t the largest in the industry, but it is impressive. Pink and her husband have a few notable bikes, including a Harley Davidson and a Suzuki Hayabusa sportbike. She has been regularly spotted riding around L.A. on her Harley Davidson Sportster.