Trace Cyrus and Brenda Song Engaged!

After much speculation that the couple might be expecting ... Trace Cyrus and Brenda Song announced today they're engaged to be married.

Miley's brother Tweeted: "I am very excited to say, last week I asked my girlfriend Brenda Song to marry me and she said YES! We are both very excited to be engaged."

Song, known for her role on Suite Life With Zach and Cody on the Disney Channel, and for her role as Andrew Garfield's girlfriend in The Social Network began dating the rocker/clothing designer earlier this spring. Their first appearance together was at a Nylon magazine party in May.

X17online snapped some seemingly sad photos of a teary Song returning home from the hospital three weeks ago with Trace and Tish Cyrus by her side.

The actress' mother denied reports her daughter was pregnant but there was never any official word from Song's publicist.