Adam Shankman, one of the producers of ‘The Last Song,’ recently talked to People magazine about how Miley Cyrus and fiancee Liam Hemsworth first met on set — and why they are a perfect match.

Shankman said, “I sort of want a finder’s fee for Miley Cyrus and Liam Hemsworth.” He explained that the couple’s chemistry was immediate and quite obvious, despite Hemsworth having a girlfriend when they first met. He continued, “I remember that first day of shooting when they first kissed and Miley walked by my sister [producer Jennifer Gibgot] after they shot the kissing scene. She goes, ‘This is gonna work.‘”

So, why are Miley and Liam so perfect together? Shankman says it’s all about opposites attracting. He comments that their core values are the same, but that Liam is mellow and Miley is hyper. I guess having someone that balances you out is a good thing, and Liam seems to do just that. But does Shankman think the young couple (Miley 19, Liam 22) are a little too young to head down the aisle — some sources are saying as soon as next summer? According to People, he wouldn’t say, but he did mention one thing that worries him a bit: “It’s extraordinary, and I’m so happy, [but] I’m scared at how beautiful those children are going to be.”

Do you think Miley and Liam are perfect for each other?