The 20-year-old singer JoJo looked sexy in a skin-tight black number while performing at the House of Blues in Los Angeles on tour with Joe Jonas and Jay Sean.

The 20-year-old musician JoJo looked stylish in a Boston tee paired with a tight jeans and knee-high-boots as she hits up Hyde Nightclub in Los Angeles.

The 20-year-old 'Disaster' singer JoJo shows off her toned abs on full display in a black midriff-bearing leather top paired with a pair of black leather pants while attending at Perez Hilton's One Night in Los Angeles.

The singer JoJo looked stunning in a sexy LBD as she arrives at the 2011 MTV Video Music Awards in Los Angeles.

The 20-year-old singer JoJo wearing a midriff-bearing shirt and short shorts while attending Taylor Swift's concert at the Staples Center in Los Angeles.

The 20-year-old singer JoJo's got sexy legs as she enjoys dinner out at Katsuya restaurant in Hollywood with some friends.

The 20-year-old singer JoJo looked stunning in a bright purple mini-dress as she arrives at the 2011 Vh1 Do Something Awards in Hollywood.

The 20-year-old singer JoJo shows off her toned tummy in a cropped top and a skinny jeans as she attended at G-Star Women's Night Shopping Event in Beverly Hills.

The 20-year-old musician JoJo showing the cameras some pretty nice cleavage as she attended the DoSomething.org & Staples Teen Choice Awards after party in LA.

The singer JoJo looked lovely in in a Marco Marco mini-dress as she hit the blue carpet at the 2011 Teen Choice Awards in Los Angeles.