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In The Fix today: Rihanna and Chris Brown reveal two collaborations, plus will.i.am and Florence Welch chat to us at London Fashion Week

We finally have proof that Chris Brown and Rihanna are communicating again. First Chris wishes RiRi a happy birthday on Twitter, then he posts a link to a collaboration from the two of them. Rihanna features on a remix of his latest single, Turn Up The Music. Rihanna has also revealed that Chris features on a remix of her latest track, Birthday Cake. Listen to a snippet from both collaborations here...

In other news, will.i.am is in the hot seat as he watches the Burberry show at London Fashion Week from the front row. We have a quick chat with the singer about his new role as a judge on The Voice.

Finally, Florence Welch is becoming a fashion icon in British music, so when we bumped into her at London Fashion Week, we asked her for some style advice. Her answer, however, wasn't quite what we were expecting...