Could it be true?

Miley and Liam met on the set of the 2010 movie "The Last Song".  They got engaged in 2012, but broke up in 2013 and it was very upsetting to fans.

They were spotted kissing and rubbing up against each other at a music festival in Byron Bay, Australia yesterday.  They also hung out in the VIP section with Liam's brothers Chris and Luke, and their wives.  They apparently spent the whole weekend together, because Miley was also at the Hemsworths' New Year's party.