Facebook founder Mark Zuckerberg, speaking to mobile tech leaders in Barcelona, said WhatsApp, the mobile messaging app purchased by the social media giant last week, was "worth more than $19 billion." Zuckerberg's comments at Mobile World Congress, referencing the eye-watering price paid for WhatsApp, were met with surprise.

When will.i.am shouted, "Welcome to the future!" as he and the rest of the Black Eyed Peas cavorted with a blur of dancers through a medley that sounded like a military cadence mixed with an ad jingle at the 52nd Annual Grammy Awards on Sunday, he wasn't only spouting a cliche. His bulletin announced that pop music's winning game is changing, and that the only way for the music business to survive is to jump into the pandemonium.

Singapore has dethroned the Japanese capital to become the world's most expensive city in 2014, according to the Economist Intelligence Unit's latest Worldwide Cost of Living survey.