A remix of a Yoko Ono song on which John Lennon was working before his death has become a dance number one in the US.
Ono allowed the Pet Shop Boys to work on the track
The dance mix of Walking On Thin Ice, the song Ono and Lennon recorded in 1980, has debuted at number one on the Billboard dance chart this week.
Lennon wrote and plays guitar on the track.
"John said to me back then, 'You know this is going to be your first Number One,"' Ono, now 70, told the New York Daily News. "He just didn't say when."
The song had originally been released after the last Ono/Lennon album Double Fantasy in 1980, and proved a hit in underground clubs months after Lennon's death.
But Ono said she was initially unaware of its popularity.
"When John passed away I was mostly in bed, feeling almost dizzy. Some people had mentioned to me that some clubs were playing that song. But at the time I didn't know what was going on."
She had refused previous offers to remix the song because the idea of working on the track was "too painful".
"It brought back such memories. I just didn't want to touch it," she said.
But she relented and allowed a range of producers - including Danny Tenaglia, Rui da Silva, Felix da Housecat and the Pet Shop
Boys - to work on the track.
Lennon was holding the master tapes of the track when he was gunned down by Mark Chapman in 1980.