Miley Cyrus & Liam Hemsworth Sing Justin Bieber's 'Love Yourself' In the Car: Watch

Steve Granitz/WireImage
Miley Cyrus and Liam Hemsworth arrives at the "Paranoia" - Los Angeles Premiere at DGA Theater on Aug. 8, 2013 in Los Angeles. 

Sure, Vegemite tattoos are a nice gesture. But true love is singing Justin Bieber's "Love Yourself" together, at least according to Liam Hemsworth and Miley Cyrus. Miley posted an Instagram video on Monday night of a car ride the couple recently took (with the adorable Barbie Da Beagle), in which the pair collaborated on their first track.

Miley Cyrus Celebrates Fourth of July with Her New Dog, Old Beau

Though Hemsworth is off camera, Miley can (kind of) be seen hiding behind Barbie and singing some top-notch caraoke, with Hemsworth doing his best to chime in just before scaring Cyrus with the classic bad boyfriend/fianceé "whoa!" fake road hazard trick. Check out the adorable results.

 

 

BGVs: @liamhemsworth Starring : Barbie Da Beagle @beaglefreedom

A video posted by Miley Cyrus (@mileycyrus) on

 

A short time later, Miley also promoted the upcoming return of The Voice, posting a promo poster with the new crew -- featuring Alicia Keys -- that will take over when the show comes back on Sept. 19.

 

 

Yesssssssss!!! #TheVoice kicks off September 19 on NBC ❤️❤️

A photo posted by Miley Cyrus (@mileycyrus) on