And Justin Bieber’s week just continues to get worse. After getting booed at the Billboard Music Awards, Jon Bon Jovi is letting us all know how he really feels about the 19-year-old pop star.

Discussing Justin being more than two hours late to one of his shows at London’s O2 arena last March, the rock frontman has a little piece of advice for the Biebs. “Every generation has guys that do that, none of that is new,” he said. But things went downhill from there...

“They run the risk of disrespecting their audience members who have worked hard to pay for their ticket, to give you the permission to take two or three hours of their lives -– or in that kid’s case, 80 minutes of their lives,” he continued on the subject. “Do it once, you can be forgiven. Do it enough and shame on you. They won’t have you back. Then it just becomes a cliché. It’s really not cool –- you’re an a—hole. Go to f—kin’ work!”

Yikes!

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Jon certainly isn’t the only celebrity that has voiced their opinion on the Biebs. Last month former NSYNC member Joey Fatone offered his input on the superstar, saying, “Don’t be douche,” while Judd Apatow is actually worried about him. “I feel bad for him. We’ve seen that before and you want to give him a hug and tell him to calm down,” he said. “But hopefully he’ll just pull out of it and it’ll be alright. It must be a very strange position to find yourself in as young person.”

2013 has definitely been a controversial year for Justin, especially since his split from Selena Gomez and the kick-off the European leg of his Believe World Tour. And while young Beliebers practically worship everything about the guy, according to a poll, he’s one of the most disliked singers from Americans. Getting booed while accepting his fan-voted Milestone Award at the Billboard Music Awards certainly proved just that.

But are we being too hard on him or has fame gone to Justin’s head? Being 19 years old in the entertainment industry and his status as the biggest pop star in the world definitely could be a lot to handle. Maybe JB isn’t acting any different from any other teen in the world, but his every move being picked apart leaves little room for error.

What do you think about Justin’s antics?

And do you agree with celebrity comments about him?