What is my voice type?

I can sing You raise me up by Josh Groban,paparazzi by Lady GaGa, Down To Earth by Justin Bieber, Fighter,Spotlight, Bound To you( yes I can sing those high "see" and the last "You"),and several songs from Britney Spears.I can run from low to high really quick .I am a 18 years old boy. Please help!