Riding a bike is fun for most children - but for Ruby Isaac, it is a hobby that has taken her to Hollywood.
The 9-year-old from Kettering in Northamptonshire has only started riding her bike two years ago.
Her social media videos have thousands of followers.
And now she's appearing on American TV - as a guest in NBC's Little Big Shots with Steve Harvey.
Ruby says she's wants to show other children how fun cycling is - and is determined to get more people on their bikes.