Kendall Jenner and Justin Bieber have clearly been taken up in the lip syncing craze that's sweeping the world as the rumoured couple have gotten in on the miming action by creating their own home video of themselves belting out one of the summer's biggest tunes — with a little help from songstress Ariana Grande... 

21-year-old singer Justin took to his YouTube account yesterday to share this HILARIOUS video with his loyal fans, which has since accumulated over 2.5 million views in the last 24 hours. Jeez. 

Singing along to the insanely catchy 'I Really Like You' by JB's music BFF Carly Rae Jepsen, the video kicks off with Ariana and Justin in what looks like a backstage area with the 21-year-old starlet mouthing the words while directly looking into the camera. 

From this, the video switches between the pair dancing with their friends to Justin hanging out with some of his troupe outside at night, sans shirts. 

It's when the video gets just over halfway that we see Kendall make her lip syncing debut whilst rocking a cool chambray shirt and clutching Justin's beloved fedora hat (which, needless to say, gets a LOT of screen time throughout the montage). 

Then, when the music pauses just for a second, you can hear Justin utter the words 'I'm pregnant', before whispering 'just kidding' to a giggling Kendall. Of course, this video does nothing to dispel the whispers that Justin and Kendall are dating. If anything, it makes the rumour seem even more truthful. 

It all started when Justin posed this snap of he and Kendall gazing down at the model's dog whilst he sat on her lap. If this doesn't look loved up, we don't know what does! 

While Justin hasn't said so, it looks like this homemade vid was inspired by the new US TV show Lip Sync Battle that's taken the globe by storm which has seen the likes of Anne Hathaway, Emily Blunt, Chrissy Teigen and Anna Kendrick fight it out against each other by lip syncing songs of their choice with the audience deciding on the overall winner. In case you haven't seen it, Anne's rendition of Miley Cyrus' Wrecking Ball was the pinnacle! Check it out below... 

In the spirit of all things lip sync, the team at InStyle HQ has revealed what song they'd pick to do battle with. Here are our funny and somewhat worrying ballads of choice: 

Emily Dean, Deputy EditorGold Digger by Kanye West

Hannah Rochell, Fashion Features EditorJump Around by House Of Pain

Lucy Pavia, Senior Features WriterThe Fresh Prince Of Bel-Air by Will Smith

Maxine Eggenberger, Digital Fashion & Beauty Writer Get Back by Ludacris

Chloe Mac Donnell, Editorial Assistant Say My Name by Destiny's Child

George Driver, Beauty Assistant Ain't No Mountain High Enough by Marvin Gaye

What would be your lip sync song of choice? Let us know by tweeting us at @InStyle_UK