We’ve already heard a snippet of Beyoncé’s track “Grown Woman”, which was teased in her Pepsi commercial last month, but now the whole song has leaked online (although those who made it to her Mrs Carter tour would have heard it performed in full).

Beyonce, John Legend and Florence + The Machine are to headline a stadium charity show to raise funds for women's health, education and justice around the world.

If the recording of 20/20 was crammed in between film commitments, you wouldn't know it.

Album of the Week: Timberlake's back in the groove with some top tunes

Gucci Mane’s announcement to his 1.1 million Twitter followers that he was changing his name to “Guwop”, caused such a stir among fans that within an hour the rapper had changed it back. But the change itself showed that in the ephemeral world of hip-hop, you’re no one if you haven’t had a rap-rebrand.

The acronym apparently stands for "Forgiving All My Enemies", a typically self-pitying claim on the moral high ground from someone who, lest we forget, was convicted of assaulting a woman.

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"It's been one of the greatest experiences of my life, playing my first international show for you," said the Canadian actor-rapper Drake, towards the end of his set, before pointing out that unidentified timekeepers were warning that he had run over. "I waited my whole life for this," he said, "so if they wanna fine me, if they wanna penalise me, I don't care." It was only half-past ten, though, so there seemed little danger of his turning into a pumpkin.

So blank she almost fades to white, so slender she almost disappears from view, Rihanna is the archetypal modern pop star: the spindly skeleton of an umb-er-ella-ella-ella over which any canvas can be stretched.

Celebrating his recent appointment as "Creative Chairman" of Priority Records, Snoop Dogg has managed to release an album whose overall meagre level of creativity makes one wonder how he'll work out in his new position.

Of all the talent-show turns unearthed in the past decade, Leona Lewis is the only one to have parlayed the opportunity, when it knocked, into a significant international career; and judging by this safe, careful follow-up to the multi-platinum Spirit, she's not taking any unnecessary chances that might prematurely derail that career. She might admirably refer to the original Greek myth – in which an unrequited lover pines away till just her voice remained – in explaining the album's title, but one doesn't have to be a complete cynic to place a more prosaic interpretation on Echo, so closely does it stick to its predecessor's formula.