Jackie Evancho is a music veteran at 14

Jackie Evancho is the little girl with the big voice who stole hearts as a runner-up on America's Got Talent.

At just 10 years old, she sang with an operatic voice far beyond her years that caused judge Sharon Osbourne to call her "a little angel" on season five of the talent show in 2011.

Now Jackie has released her third album, Awakening, and aged 14, is practically a music industry veteran.

It's an ambitious record on which the teenager covers a song from the Game of Thrones soundtrack, The Rains of Castamere, and U2's With Or Without You.

They're songs that work surprisingly well in the musical genre in which she says she feels most comfortable singing: classical crossover.

Jackie's life has changed since she performed in the talent show.

She's performed for US President Barack Obama, as well as with Cirque De Soleil in Las Vegas, and even acted in a 2012 film alongside Robert Redford, The Company You Keep.

Yet the young star remains incredibly humble.

"Even to this day, I don't think I have too great a voice but I have got so comfortable with performing," she tells AAP.

"If people say that I'm good then I guess they enjoy hearing me sing. If they like it, then I'm here to serve them."

Jackie says she started singing at the age of seven, all because she saw one film which even inspired her musical style.

"The movie The Phantom of the Opera is the movie that inspired me to start singing and in that movie, and show, that's the style of music... classical crossover," she says.

While her music career takes off, she's been very clear about keeping as normal a life as possible.

"I enjoy learning in a public school area, it helps me," she says.

"For a certain amount of time, I was tutored or home-schooled but we kind of fought to put me back in public school because I missed my friends."

She also admits before she got the role in The Company They Keep, she hadn't even heard of Robert Redford.

"My Dad had told me he was a cowboy, that's what my Dad told me," she says.

The movie veteran gave Jackie some advice on set, telling her to just "be herself and act natural".

"We kind of wanted to be comfortable with each other in that sense of father and daughter," she says.

While she says she would love to act in another film with Redford, her music career is keeping her busy.

She says she was involved in choosing the songs on the album, alongside her team.

"We went on Google, just had a casual look at songs we thought would go well with my voice," she says.

The U2 cover is a particular favourite of hers, but Jackie also sings classics such as Ave Maria, Memories and, of course, a track from her favourite film Phantom of the Opera, Think of Me.

It's an album that conjures up cinematic images, so it's no surprise the young star says she's open to providing the soundtrack to something some day.

"One day I hope one of my songs will be one a movie or TV show."

  • Awakening is out now via Sony Music Australia.