No celebrity relationship has been quite as tumultuous as Miley Cyrus and Liam Hemsworth's. From engagements to breakups to getting back together, the on-again-off-again couple prove they just can't quit each other. Here's a look back at their cutest moments — then and now!
MUST SEE: From Breakup to Engagement: A Look at Miley Cyrus and Liam Hemsworth's Complicated Relationship!
Click through the gallery to see then-and-now pics of Miley and Liam.
Sparks started flying on the set of The Last Song in 2009 and have continued (with a three-year break) into 2017.