Janet Jackson remains the most (relatively) normal of the Jackson family clan, which could explain why she's not hurting for money unlike the rest of her siblings.

It's been confirmed that Janet's personal wealth exceeded $1 billion this year. The news is particularly surprising since Janet hasn't had a hit song in almost 10 years and her recent attempts at acting have only been moderately successful.

Janet hasn't released an album since 2008's Discipline, which was among the lowest selling of her 30-year career. She starred in 2007's Why Did I Get Married? and the 2010 sequel Why Did I Get Married Too?, as well as the 2010 movie For Colored Girls. Although all three movies turned a profit, none of them were huge blockbuster successes by any stretch.

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That doesn't seem to matter much, though. According to Variety, Janet has earned $458 million from her successful concert tours, $304 million for her film roles, $260 million in album sales, and $81 million from tour sponsorship and licensing fees. Her most recent Number Ones tour in 2011 helped her earn $16 million.

She now joins the elite ranks of celebrity billionaires including Oprah Winfrey, Madonna and Steven Spielberg. If that's not enough wealth for her, Janet's husband Wissam Al Mana is a billionaire as well! Wissam is a fashion tycoon who is the director director of Al Mana Retail, a shareholder in Saks Fifth Avenue stores in Dubai, Doha, Bahrain and Kuwait.

However, Janet doesn't seem content to be counting her money and plans on continuing to work. She recently told Billboard that she's planning on delivering a new album to celebrate the 20th anniversary of her groundbreaking record Janet.

What do you think of Janet joining the billionaires club?

Photos courtesy of Fameflynet & Getty Images