Justin Bieber's grandparents blame his controversial behaviour on his age

Canadian pop musician, Justin Beiber's grandparents have come out in support of their grandson following his recent antics, saying that he's doing the things a normal 19-year-old would do.

Diana Dale has spoken out to defend her grandson and has called for people to cut him some slack.

She told Canada's CTV News Ottowa that she thinks its crazy as paparazzi is constantly scrutinizing him. She added that all kids at some point indulge in the same things, but Beiber's actions have been over hyped, the Mirror reported.

His grandfather, Bruce Dale asked people to keep his age in mind and also consider what other 19-year olds are doing.

In recent months, Beiber has had an altercation with a photographer, has fallen ill on stage and was even filmed urinating into a mop bucket among other naughty things.