Miley Cyrus loves her "positive" boyfriend.

The 'Hannah Montana' star is delighted with the way Liam Hemsworth - who she met when they worked together on 'The Last Song' - has quickly adjusted to her fame and is particularly smitten by his relaxed attitude to life.

When asked about how the former 'Neighbours' star copes with the pressure of having such a famous girlfriend, she replied, "It's interesting for him. He had a show hit in Australia but media is light there to how it is in the States.

"He gives the best comments when asked about our relationship. He's smart, positive and non judgemental."

Miley famously dated Nick Jonas from the Jonas Brothers, but the pair split in 2007 after a two year relationship.

Miley has recorded new song, 'Full Circle' about their relationship,

She recently told fans at a concert in Lisbon: "It's about two people, they're always gonna come back together no matter what anyone says or the bad people that try to keep you apart. Surprise, surprise, it's about a Jonas Brother, you didn't hear that."