Catcerto

This comes from our frenemies at L.A. Unleashed, the Los Angeles Times' vastly inferior pet blog. You should only read this pet blog. Accept no substitutes!

A piano-playing cat named Nora took YouTube by storm a few years ago when her owners, married Philadelphia-based artists Burnell Yow! (yes, the exclamation mark is part of his name) and Betsy Alexander, uploaded a video of her performances to the site.
Yow! and Alexander meant simply to share the video with Alexander's students (she teaches piano in addition to her work in music composition and studio art) and with their niece, who lived across the country.  But word spread quickly among the Internet cat meme community; since the original video was uploaded in early 2007, it's received more than 14 million views.  (A second video, dubbed "The Sequel - Better than the original!" was added a few months later and has garnered another 4 million views.)  
Earlier this year, Lithuanian conductor Mindaugas Piecaitis caught wind of the phenomenon and decided to compose an orchestral piece to frame Nora's piano playing.  The resulting composition, "Catcerto" (Piecaitis' overly precious title, not ours), premiered at the Klaipeda Concert Hall on June 5.  Video of Nora, the "featured soloist," played on a giant screen behind the Klaipeda Chamber Orchestra during the performance.