- Dolores O'Riordan was to record a new version of Zombie
- She was to record the track for the band Bad Wolves
- 'Shocked and saddened at the news of Dolores's passing,' the band wrote
The band's singer Tommy Vext said: "We always felt the rawness and honesty she projected on stage and in her recordings was something to which all bands should aspire to, regardless of genre.
"When we heard she liked our version and wanted to sing on it, it was the greatest compliment a new band, or any band for that matter, could have received," he said.
Music producer Dan Waite, a friend of O'Riordan's, said she had left him a voice message shortly before her death "stating how much she loved the Bad Wolves' version of Zombie; she was looking forward to seeing me in the studio and recording vocals.
Police said they were called to a hotel in Park Lane in the centre of the British capital at 0905 GMT on Monday where a 46-year-old woman was found dead at the scene.
A police spokeswoman on Tuesday said the death was "not being treated as suspicious".
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