Kate Bush has said she was "terrified" about returning to the stage for her comeback gigs - and that she hopes to write new music again.
The 58-year-old returned to the stage in 2014 after more than three decades, thrilling fans and critics alike.
In an interview with BBC Radio 6 Music, the Running Up That Hill and Wuthering Heights singer said of the live shows: "It was a fun idea to toy with. But actually pushing the button to go was something that I had to really, seriously build up to.
"I was terrified. The idea of putting the show together was something that I found really interesting and really exciting to be able to put a visual theatrical piece together, but to actually step into it was something that I had to really work hard on because I was terrified of doing live work as a performer again."
She told 6 Music host Matt Everitt: "I was really nervous every night as a performer, but had complete faith in everybody on the stage, everybody in the team, all the sound guys."
Kate, who has shunned the limelight, said of her fears: "I think maybe it's that kind of primeval thing where you're trying to think, 'can I get to that tree before the tiger gets me, will I be able to get up high enough?'.
"So my head is always moving ahead, just trying to get to the conclusion of whatever this journey is. And once we started running the show I had to be absolutely in that moment.
"But I was so terrified that if my mind wandered off that when I came back I wouldn't remember where I was. So I had to really fix myself so that I would remember where I was in the song."
Kate said in the hour-long interview - which will be broadcast in full from 1pm on Sunday November 20 - that she has not made up her mind about more live shows.
"It was really magical. But I don't know. I don't know what I'm going to do next... I want to just do something new," she said.
She said she had not written a song "for ages" because she has been busy with her live album, Before The Dawn, recorded during her sell-out run at the Hammersmith Apollo, and set for release later this month.
But she suggested that despite the break in writing, there would, one day, be another new album.
Asked "this is not a full stop or anything, is it?", Bush replied: "Oh no, I don't think so. I think it's just a rather big comma."
A clip from the interview has been played on 6 Music, which will also air the first play of Disc 2 from Before The Dawn.
The BBC station said the chat was Bush's first broadcast interview since 2011.
6 Music host Matt said: "Kate Bush is without doubt one of the most original and gifted musicians and producers of all time.
"It was incredible to have an opportunity to find out her reasons behind performing again, how she brought a hugely demanding and ambitious conceptual vision to the stage and, of course, just to meet the person behind so many wonderful songs."
Paul Rodgers, 6 Music's head of programmes, said: "I'm delighted that 6 Music has the world exclusive radio interview with Kate Bush. This is exciting news for her fans around the world."