My, my! Our little Disney star Miley Cyrus is growing up so fast!

According to Hollywood Life, Miley Cyrus and Liam Hemsworth are now engaged! The couple has been dating since 2009 when they first met filming The Last Song. Miley revealed her heavy engagement ring, a rock weighing over 3.5 carats. Can't show love better than with diamonds--how did Liam learn this so fast?!

Although the two have been dating for over three years, many are surprised because, well, they're just so young!  Currently Miley  and Liam are only 19 and 22  years-old, respectively. But looking at how much Miley and Liam have developed their Hollywood careers of the years, the two have little to fear as long as they remember, as Miley said at the premiere of The Hunger Games, "who was there for you before any of these matters," reports Hollywood Life.

Congratulations to the couple; Love is hard to find, especially when young!

What do you think--can their young love survive? Would love to hear your thoughts below!

For more, get the full scoop on Hollywood Life here!