Justin Bieber is very independent

LONDON - Singer Justin Bieber says he is a very independent person.

I guess Im fine with being by myself. Im a very independent person, so I dont really get lonely. I dont get much time to myself, he said.

I work a lot, but at night time, thats basically my down time when I get to just lay in bed, play on my computer, check twitter and all that. I never get to feel anonymous anymore, not really.

The 16-year-old teen sensation admits that he relies on his mother, Pattie Mallette, and music mentor Usher to keep him grounded, reports showbizspy.com.

I have some great people on my team that keep me grounded, my mum is always with me and they keep me sane, and Usher has been there, so he knows, he helps keep me sane, he said.