"My mom is just here to be my mom. You know, I don't really want her all in the business side of things, because it seems to pull a lot of relationships away. I've seen it so many times where you then think of your mom as your manager and not your mom," Bieber said. "So I was like, Mom, I just want you to be there to be my mom... she's really strict… she's still going to lay down the law."
Over the years, Walters has sat down with presidents, dignitaries, actors and musicians. Last year, first lady Michelle Obama was dubbed the Most Fascinating of 2009. The list included some of the year's most prominent names in entertainment, politics and sports: pop star Lady Gaga, Jenny Sanford, "Kate Plus 8" mother Kate Gosselin, NFL quarterback Brett Favre, singer Adam Lambert, FOX News host Glenn Beck, and more.
Watch "Barbara Walters Presents: The 10 Most Fascinating People of 2010" Thursday, Dec. 9 at 10 p.m. ET.