Gaynor Davies was 19 when she made the trip to London for the all-star gig in 1985.
She said: "Tickets were like gold dust and cost £25 each - a lot of money then. I was lucky to get one. My brother had a ticket but couldn't go, so I bought it off him."
Mrs Davies, now 40, from Bideford Road, Maesglas, Newport, had to leave Newport at 6am to get to London, but said it was worth the journey.
She said: "It was absolutely amazing. I can't explain the atmosphere when at noon Status Quo came on and played Rocking All Over the World."
Twenty years on, she hopes this Saturday's Live 8 concerts will get the same response.
She said: "It was an amazing party but there were sad times too, like when they played (The Cars') Who's Going to Drive You Home? That was when the images came up on the big screens. I remember seeing people crying all around me."
Mrs Davies believes tomorrow's Live 8 concerts are important and a great idea - although she admits it does not have the same appeal for her as Live Aid did.
She said: "For the youngsters of today it'll be great. They'll probably have as good a time as I did. But I don't recognise half the bands playing."
She thinks 20 years is too long to have left it between concerts. She is afraid people forget too easily if they are allowed to.
She said: "They can't stop making people aware after the concert. It's already been too long since the last one. Children have never stopped dying in Africa. Poverty is an ongoing thing and it wasn't cured by Live Aid."
Her own awareness of Africa's plight was awoken by the Live Aid experience, and she hopes tomorrow's concerts can do the same for others.
She said: "I hope it leaves a lasting impression on people. Then Bob Geldof will have achieved what he set out to do."
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