'He's so attractive up close': Rebel Wilson gushes about Justin Bieber and jokes he cancelled meet and greets with fans due to their 'mutual' attraction... as she wins Big Music Quiz

She's one of Australia's biggest Hollywood stars, who has plenty of high-profile celebrity friends. 

And on Wednesday night's finale of The Big Music Quiz, Rebel Wilson name-dropped as she gushed about popstar Justin Bieber while on the Channel Seven show.

The 36-year-old spoke about the Canadian pop star, 22, saying: 'He's so attractive up close!'

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The Sorry singer came up in conversation when one of his hits was played on the show, with contestants having to guess the name of the track. 

Rebel was asked if she knew Justin and she admitted they see each other regularly.

'I run into the Biebs (sic) quite a lot weirdly,' Rebel said with a laugh. 

'He's the nicest guy and so attractive up close,' she added.

She was then asked if she thought Justin cancelling his fan meet and greets on his Purpose tour was 'fair'.

The comedian and actress joked it was actually because of their 'mutual' attraction.

'I think too many girls, like, groped him,' she said, with host Darren McMullen asking if it was because of her. 

The Pitch Perfect star quipped: 'Well with us it was a mutual thing, so.' 

During the episode, Rebel joined the likes of Home and Away's Georgia Parker, Joel Creasey, Miranda Tapsell, Clare Bowditch and Cyrus Villanueva playing on the show. 

She eventually took out the competition and won, joking when she received the medal: 'Is there a cash prize that goes with this?'

Rebel appeared on The Big Music Quiz early last month and at the time shocked fellow contestants when she joked about the infamous child molestation accusations faced by the late Michael Jackson. 

It came as the guests discussed the first ever concerts they attended, with both Rebel and host Darren McMullen revealing they once saw the late pop superstar.

'I remember at the end they had all these kids come out singing Heal the World,' Rebel said, describing the gig.

'I remember being so jealous of those kids. Then later I realised...' 

A mixture and laughs and gasps followed from the audience as no one seemed quite sure how to react to the quip.