[Claudia Breidbach, right, demonstrates a bionic hand that is steerable by a mobile phone to German Chancellor Angela Merkel and British Prime Minister David Cameron during the opening day of the computer fair CeBIT in Hannover, Germany, on Monday. Image via Frank Augstein/AP.]

Christina Aguilera's sixth studio album, Bionic, sold a little over 300,000 copies in the U.S. in total. which is terrible even for a time when nobody's buying albums (to contrast, P!nk's The Truth About Love sold over 280,000 copies its first week after it was released last month). Bionic had no real hit singles, either.

Michael Waldron was born with a congenital malformation that left him without four fingers on his right hand. Struggling to fit in—and function—his entire life, 18-year-old Waldron found new hope with a brand new bionic hand. Video inside.

With metal peg legs fused to his bones, Oscar is the "world's first bionic cat." Whereas canine double-amputees are happy to drag themselves around on wheels, the cat's springing gait has long foiled animal prostheticians. Updated with video.

During an interview about her upcoming album Bionic, a reporter coughed and Christina (who looks good!) interrupted her sentence to voice her displeasure before playing it off as a joke. What an amateur: Naomi Campbell would have clocked the guy.