Miley Cyrus and her boyfriend had a rockin' New Year's Eve at Britney Spears' concert in Las Vegas alongside Patrick's dad, Arnold Schwarzenegger and newly engaged couple Sofia Vergara and Joe Manganiello.
Cyrus shared a photo on Instagram of herself and Patrick ringing in 2015 at Planet Hollywood Las Vegas Resort and Casino where Spears was performing her Pieces of Me show.
Fellow concert-goer Robin Leach tweeted, "Miley Cyrus in lit-up high heels on arm of bf Patrick Schwarzenegger @britneyspears show in Planet Hollywood after dinner with his dad Arnold."
Miley and Patrick met up with the elder Schwarzenegger and his girlfriend who stopped for pics with Vergara and Manganiello.
Looks like a good time was had by all!