Jennifer was performing her new single, Dance Again on the show.
The United States formally said for the first time on Wednesday that it had killed radical Yemeni-American cleric Anwar al-Awlaki and three other US citizens in anti-terror strikes abroad.
Polish doctors carried out the world's first life-saving face transplant, the centre's spokeswoman said Wednesday, weeks after a 33-year-old man was disfigured by a machine in a workplace accident.
Twitter said Wednesday it was stepping up security measures for the popular messaging service following a series of high-profile breaches by hackers hitting media organizations and others.
Farmers wearing bulletproof jackets and toting assault rifles ride in pick-up trucks emblazoned with the word "self-defense" to protect this rural western Mexico town from the Knights Templar drug cartel.
Paris Saint-Germain striker Zlatan Ibrahimovic admitted Wednesday that a departure from the Ligue 1 champions could not be ruled out if the club continues to lack stability behind the scenes.
Major powers urged Syrian President Bashar al-Assad to commit to peace and step down as they held talks in neighbouring Jordan on Wednesday on preparations for a Russian-US proposed peace conference.