London: Pattie Mallette says her relationship with son Justin Bieber has undergone a fundamental change since he turned 18 last year.
The `Baby` hitmaker has been close to his mother after his parent`s divorce and frequently visits Mallette, reported Aceshowbiz.
"When your kids hit a certain age your parenting style changes and it is hard letting go. His life was my life and now I`ve had to let him go a little bit and let him be independent. It is hard to not be able to control everything that your adult child does.
"A lot of people might think that I have my head in the sand or that I am oblivious to the things my son is doing. I know who my son is and I don`t always agree with every single thing that he does, but I don`t necessarily have to address that with everyone else. He`s my son and I have to respect he is not going to want me going around being `that mum` talking about his behavior," she said.