Justin Bieber stepped out in West Hollywood on Friday without his wife Hailey Bieber amid rumors of marital strife.

The pop star’s night out came amidst growing fan concern after the 30-year-old singer was spotted solo New York City earlier this month, looking disheveled and exhausted.

Speculation about their relationship has intensified, particularly in light of reports describing Justin’s behavior as ‘unacceptable’ — with a source recently telling DailyMail.com that Justin is a ‘loose cannon.’

However, he seemed unfazed as he made his way to Barney’s Beanery with a group of pals.

Justin, maintaining a slight distance from his friends, kept a low profile in dark sunglᴀsses and a haphazard mix of sweaters and jackets, 

He also appeared to fully embraced his recent disheveled-chic look.

Justin Bieber stepped out in West Hollywood on Friday without his wife Hailey Bieber amid rumors of marital strife 

The pop star’s night out came amidst growing fan concern after the 30-year-old singer was spotted solo New York City earlier this month, looking disheveled and exhausted

Meanwhile, Hailey is ‘deeply concerned’ for her husband and doesn’t know ‘where to turn’ for ‘help,’ a source has claimed.  

The singer, 30, has sparked concern over his well-being in recent weeks following a string of appearances looking noticeably gaunt and pale and wearing bizarre outfits.

Fears were raised again this week when video footage emerged of him shifting his weight between each foot, itching his legs and grinning uncontrollably as he talked to a fan at his wife’s pop up store in Los Angeles.

Read More Justin Bieber sparks major fears with fans after worrying appearance in LA

Now, an insider has laid bare Hailey’s reported concerns about her husband’s mood, work, and diet.

They claimed that he ‘doesn’t care about his well-being anymore’ and that he has ‘lost’ all ‘motivation’ – even for making music, which used to excite him.

‘He’s not working out like he used to, he doesn’t seem to eat like he once did, and people can see he has lost weight,’ they told DailyMail.com. 

‘It’s like he doesn’t care about his well-being anymore. He’s moodier too. People are worried that he’s lost any motivation, even for his music.

‘He goes to start recording but then he cancels sessions because “he isn’t in the mood.” It’s like he is struggling to focus on his own songwriting.’

Speculation about their relationship has intensified, particularly in light of reports describing Justin’s behavior as ‘unacceptable’ — with a source recently telling DailyMail.com that Justin is a ‘loose cannon’

The source alleged that Hailey has tried to ‘help’ him but he ‘won’t listen’ to her.

They added that she now doesn’t know ‘where to turn’ because neither of them are close with their respective families.

‘Hailey is deeply concerned for Justin,’ they continued. ‘He won’t listen to her when she tries to help.

‘Hailey struggles with where to turn. It’s not as if she can ask his family for help – or hers for that matter. They’ve both experienced estrangement from them.’

DailyMail.com has reached out to Hailey and Justin’s reps for comment.