Writer works with Robbie Williams.

BMG Music Publishing U.K. has signed Stephen Duffy, writing partner to Robbie Williams, to a worldwide exclusive deal.

Duffy co-wrote the top-10 U.K. hits "Radio" and "Misunderstood," both of which appear on Williams' "Greatest Hits" (Chrysalis), which reached No. 1 on the European Top 100 Albums chart.

The two are currently at work in L.A. on Williams' next album.

Williams has been with BMG Publishing since 2001.

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