Miley Cyrus' appears alongside boyfriend Justin Gaston where he finally debuts his singing talent in a new video made for YouTube.

Justin made an appearance on the Miley & Mandy Show.

After answering Miley's questions about what were his favorite things in 2008 from his best YouTube video of 2008 to what was his favorite place he visited.

The 20-year-old model finally got to show off his singer/songwriter side, performing his song She Makes Me Happy while the Hannah Montana actress and her BFF Mandy Jiroux dance around and sing along.

Watch the video below: