Rocker Jon Bon Jovi  had some harsh words for Justin Bieber this week, slamming the 
19-year-old in the press for showing up two hours late to a London show 
back in March.
The “Blaze of Glory” singer told the Biebs via the 
London Evening Standard, “It’s really not cool – you’re an asshole. Go to fuckin’ work!”
Apparently, the paper asked Bon Jovi his thoughts on Justin’s late start and his excuse that it was due to “technical issues.”
The
 51-year-old responded, "Every generation has guys that do that, none of
 that is new. 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."Jon added, "Do it once, you 
can be forgiven. Do it enough times and shame on you. They won't have 
you back. Then it just becomes a cliché. It's really not cool — you're 
an asshole. Go to fuckin' work!"
Bon Jovi spoke to the Evening 
Standard on the Vienna leg of his Because We Can tour. The artist is 
known for his live performances, sometimes playing for more than two and
 a half hours.