Chris Hemsworth has paid the ultimate tribute to his younger brother Liam's girlfriend Miley Cyrus. The Australian actor took to Instagram this week to share a video of him lip syncing the ballad "Wrecking Ball" and dancing to the song with his children. The family's dog, however, appears displeased with the performance and jumps on Hemsworth as he sings. "What started as a ground breaking music video ended in a savage attack by a cowardly K9. Never work with kids or animals," he captioned the clip. Miley shared the video on Twitter and, of course, Liam liked it.