This video features a fantastic musical performance by the internationally acclaimed 'Celtic Thunder.' Their rendition of 'Happy Birthday Sweet Sixteen' captures the spirit of the original '60s hit by Neil Sedaka.

A man in a suit stands center stage, surrounded by women in elegant dresses and musicians, under blue lighting.

There are four female singers on stage in blue and lavender long dresses singing the song's background vocals. They have choreographed motions, and their harmonies are lovely.

A band provides the accompaniment with upright bass, piano, drums, and guitar. The stage is designed with rocks to look like castle steps. Dark blue lights with stars flash in the background.

Two musicians perform on stage, one singing, the other playing guitar, under blue lighting.

The youngest member of 'Celtic Thunder' appears on stage. Damian McGinty hails from Derry, Northern Ireland, and he recorded his first 'Celtic Thunder' album at the age of fourteen.

Damian is no stranger to fame as a singer. He had a guest-starring role in the 3rd season of Fox's hit show 'Glee.' His great stage persona can be seen in this performance of 'Happy Birthday Sweet Sixteen.'

A man in a suit sings passionately on stage with four women in elegant dresses, accompanied by a guitarist.

Damian sings the lyrics, 'Tonight's the night I've waited for because you're not a baby anymore. You've turned into the prettiest girl I've ever seen. Happy birthday sweet sixteen.' He works the crowd as he walks around the stage, sitting in front of the background singers and even dancing with the guitarist.

'Celtic Thunder' brings its fans another excellent, lively performance. They are known for their theatrical stage shows with epic sets. They have released over 12 albums and over 10 live performance videos. This is another example of their fantastic musical performances over the years.