London, Oct 10 - Rihanna's mother thinks she is way too mature for someone who is just 23.

The "We Found Love" singer says her tough upbringing has made her wise and her mother can't believe how grown up she is at such a young age, reports contactnews. com.

"I saw too much. I was way too mature for my age. I guess that's why I became rebellious. That's what my mother thinks anyway," said Rihanna. (IANS)