Miley Cyrus and Liam Hemsworth made their romance official on Thursday night as they walked the red carpet for their new film The Last Song. The young couple and their co-stars revealed details to RadarOnline.com about how their onset chemistry blossomed into offset love.     

VIDEO: Miley Cyrus Says She Loves Liam Hemsworth

"It's amazing," Miley said about striking romance gold during filming. She credited the film’s writer, who also brought the world that other amazing love story The Notebook, with setting the scene: “I think Nicholas Sparks is kinda the best at that. It was good, it was awesome.”

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