Meet Claire Ryan Crosby, the five-year-old singer whose YouTube channel “Claire and Crosby” wins the hearts of millions. She gained viral fame for singing one special duet with her father and has already appeared on The Voice and The Ellen Show. And that’s why today we’re celebrating just how far she’s come by bringing you three of her best moments of all time.

This is the video that started it all. A simple duet with his father that spread like wildfire to over 20 million views on YouTube. Claire was four years old at the time, and in an interview with People.com, her father said they didn’t expect the cover of the song to reach so many people.