Undercover, Australia — `I`d like to challenge Susan Boyle to a televised glitter gun duel,` Ke$ha twittered today. more info

TMZ — Filed under: Olsen Twins, We're Just Sayin' Here's bubblegum pop newbie Ke$ha -- the chick who sings that "Tik Tok" song you can't get out of ya head -- at some event in NYC last month (left) and wonder twin Mary-Kate Olsen a few months ago (right)... more info

411 Mania — Competition heating up! more info

Reuters — LOS ANGELES (Billboard) - Susan Boyle racked up a sixth consecutive week at No. 1 on the U.S. pop album chart on Wednesday, but the Scottish singer faces a challenge for next week's title from pop newcomer Ke$ha. more info

Perez Hilton — Talk about two completely different animals! Susan Boyle is still the reigning queen of the charts with I Dreamed A Dream, but will Ke$ha be knocking her off the throne with her debut Animal? SuBo's numbers have greatly decreased from once selling ov... more info

MTV.com News — Lady Gaga takes #2 spot in slow week of album sales for everyone.By Gil Kaufman Susan Boyle's I Dreamed a Dream Photo: Sony Music Entertainment It's becoming clear that you can't stop Susan Boyle, you can only hope to contain her. Actually... more info

Rolling Stone — • News Ticker: Lady Gaga, The Knife • Green Day, Gaga Join Grammys Lineup • Green Day’s Idiot Comes to Broadway in March • Trey Anastasio Plots February Solo Tour • Pavement Best-Of Compilation Due in March • Of Montreal Talk New Sound,... more info

Starpulse — Up and comer Ke$ha just set a download record for her single "Tik Tok," which sold 610,000 copies last week. It was the biggest selling single week of a song ever by a female artist. The previous record holder for a female artist was Lady Gaga's hit... more info

Mercury News, California — iTunes' top 10 selling singles and albums of the week ending Jan. 4, 2010: Singles: 1. "Tik Tok," Ke$ha 2. more info

Rolling Stone — After making Hot 100 history last week, Ke$ha — who’s primed to be one of the breakout pop stars of 2010 — releases her debut album Animal this week. Bolstered by the hit “TiK ToK,” the 22-year-old Nashville native recruits pop gurus Max Ma... more info