BBC Radio 1 will play "up to five seconds" of the Ding Dong record on Sunday's official chart show, station controller Ben Cooper has told the BBC News Channel.
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The family said that there will "always be a welcome in Wales" for the former intelligence analyst and whistleblower.
British tennis player Dan Evans has caused a shock by beating No.7 seed Marin Cilic in four sets at the Australian Open.
Drivers' union ASLEF suspended industrial action scheduled for next week but the RMT Conductors' union strike remains in place.