Watch Miley Cyrus and Liam Hemsworth Adorably Sing Along to Justin Bieber in the Car

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Who knew Miley Cyrus and Liam Hemsworth were such Beliebers?
Cyrus shared a cute video of the couple singing along to Justin Bieber's "Love Yourself" Monday on Instagram, as her new beagle, Barbie, stares out the car window. While Hemsworth isn't the best singer, he definitely makes up for it in enthusiasm!
... Though he also got quite the reprimanding from Cyrus, when he attempts to scare her mid-song.
"Babe stop, seriously," Cyrus says.

Late last month, 23-year-old Cyrus and 26-year-old Hemsworth had people speculating about their relationship status again, when the new Voice mentor wore a new diamond band on her left hand that appeared to be in place of the engagement ring she's been rocking ever since the two rekindled their romance earlier this year. The pair has yet to confirm they're engaged again, after splitting in September 2013.
"People will figure it out, they already have... They're not dumb," Hemsworth told GQ Australia in May about his relationship with the controversial singer. "I guess when I feel something, then I just feel it and I go for it. I make my decisions about what's going to make me happy, what I think is right and what I want to do -- and I don’t worry too much outside of that."
"Everyone's happy," he also told ET when we caught up with him in May. "I'm happy. Yeah."
Watch below: