Miley Cyrus and Liam Hemsworth Engaged

(WireImage)
Miley Cyrus and her Aussie actor boyfriend of 3 years, Liam Hemsworth, have announced their engagement.
"I'm so happy to be engaged and look forward to a life of happiness with Liam," 19-year-old Miley told People magazine of 22-year-old Liam.
The pair met while co-starring in ‘The Last Song' in 2009. Liam proposed on the 31st of May with a 3.5-carat Neil Lane diamond ring.
Do you think they're too young to get married? Will it last? And should we embrace Miley as an honorary Australian?