Hollywood heartthrob Zac Efron seems to besotted with his co-star Rose Byrne and describes her as his favourite actress.

One of the world's most eligible bachelors, Efron, 26, teamed up with the Australian actress in `Bad Neighbours`, reports dailymail.co.uk. `She might be my favourite actress in the world,` Efron told Celo, the women's magazine, in an interview.

`She's got like a light about her you can't teach or learn. It's really kinda (kind of) magical. In this movie she plays a strong, funny, easy-going woman. She's gonna (going to) redefine what you want a wife to be,` he added.

He also said that he loves Australia and has a penchant for the women from OZ.

`...Australian girls are incredibly charming. (Rose) has a unique perspective on life, it's really upbeat and funny. You could say that's gotta be from Australia,` he said.

The actor, who is still looking for his special someone, has been linked to Lily Collins and Halston Sage in the past.