Pec the halls! Shirtless Justin Bieber shows off his muscular torso as he decorates his Christmas tree

By Ross Mcdonagh For Dailymail.com

Published: 17:10 EST, 14 December 2017 | Updated: 17:22 EST, 14 December 2017

Lifting all those heavy baubles and fairy lights can be sweaty work.

Which is presumably why Justin Bieber opted to decorate his Christmas tree shirtless on Wednesday night.

The pop star, 23, shared a video with his 95 million Instagram followers as he got to work on injecting a dose of holiday spirit to his home.

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Pec the halls! Justin Bieber showed off his muscular torso as he decorated his Christmas tree shirtless on Wednesday night

Anyone looking to catch a glimpse of those muscular abs and tattooed torso would want to be quick with the pause button however, as the singer uploaded the clip as a super speed time lapse.

Flitting in and out of the picture with a box of decorations, he raced up and down a step ladder until the impressive tree was complete.

To the tune of Jingle Bell Rock, the Sorry hitmaker finished in traditional style by plonking a star right at the top. 

Watch this: The pop star, 25, shared a video with his 95 million Instagram followers as he got to work on injecting a dose of holiday spirit to his home

Grab it: Anyone looking to catch a glimpse of those glistening abs would want to be quick with the pause button however, as the singer uploaded it as a super speed time lapse

Christmas tree decorating is not the only activity the Canadian musician has taken up this month; he was spotted en route to an acting class in Hollywood the day before.

He was seen heading into Nancy Banks studio, known for honing the acting skills of Hollywood stars such as Emma Stone, Rachel McAdams, Channing Tatum, Zac Efron and Forest Whitaker.

A source told TMZ that Justin was taking acting lessons for fun and not for a particular project. 

Done: To the tune of Jingle Bell Rock, the Sorry hitmaker finished in traditional style by plonking a star right at the top

Justin previously has tried out acting with minor roles in CSI: Crime Scene Investigation and Zoolander 2.

He also seems to be honing his dancing skills: The Christmas Eve singer posted an Instagram video of himself practicing a pirouette while dancing to the Ed Sheeran song Perfect.

'I'm gonna get this dancing thing down,' he wrote in the caption.

Thesp: Christmas tree decorating is not the only activity the Canadian musician has taken up this month; he was spotted en route to an acting class in Hollywood on Wednesday

Dancer: The singer posted an Instagram video of himself practicing a pirouette while dancing to the Ed Sheeran song Perfect

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