Rihanna and Emeli Sandé performed during last night's "The X Factor" U.K.'s season finale.

+ "The X Factor" U.K. pulled out the star power for its finale last night. Watch Rihanna performing "Stay" and "We Found Love" and Emeli Sandé performing "Clown." (Rap-Up)

+ Singer/actress Jenni Rivera was confirmed dead yesterday after her plane crashed in Mexico. The Billboard Latin Album top-charting star was 43. (Billboard)

+ Jamie Foxx hosted and showed off his flow on "Saturday Night Live." Watch he and 2 Chainz's opening montage and his J-Pop rap. Ne-Yo was the official musical guest; watch him perform "Let Me Love You (Until You Learn To Love Yourself)" and "She Is." (Idolator)

+ Rick Ross canceled the remainder of his tour dates after already nixing his North Carolina dates over the weekend. A rep told AllHipHop.com this was due to "apparent lack of organization and communication on the part of the tour promoter." (MTV News)

+ The Grammys may have snubbed Justin Bieber, but that didn't dampen his holiday spirit. Watch his performances of "All Around The World," "Be Alright," "Fall," and "Beauty And A Beat" from Z100's Jingle Ball at Madison Square Garden. (Idolator)

+ Watch Cyndi Lauper perform "Girls Just Wanna Have Fun" with assists from Sleigh Bells' Alexis Krauss, St. Vincent's Annie Clark, and Rosie O'Donnell during Saturday's charity concert in New York for True Colors Fund, which benefits homeless LGBT youth. (Pitchfork)

+ More than 15 years after Notorious B.I.G.'s murder, his autopsy has been released. According to Associated Press, it revealed he was shot four times, but one bullet was fatal. (Rolling Stone)

Photo credit: Getty Images