Miley Cyrus engaged to Liam Hemsworth

Miley Cyrus and Liam Hemsworth are engaged, their reps confirmed to PEOPLE on Wednesday.

After three years of dating, "Hunger Games" star Hemsworth, 22, proposed to the "Party in the U.S.A." singer/actress with a 3.5-carat ring from Neil Lane jewelers on May 31st. The two met on the set of the 2009 film, "The Last Song."

Cyrus tells the publication, "I'm so happy to be engaged and look forward to a life of happiness with Liam."

We wonder if brothers Luke and Chris (best known as "Thor") will be among Liam's groomsmen? An actual wedding date has not been set, yet.