Manic Street Preachers have given cash to an appeal for families of four miners killed in the Swansea Valley.
Neath MP Peter Hain, who helped set up the fund, said on Twitter that the Manics phoned him to pledge a "substantial donation".
He added a "mass of donations" at his Neath office had taken the total to more than £100,000.
Earlier this week, the UK Government agreed to pay the equivalent of Gift Aid - which will add 25% to all donations.
Money from the appeal will be given to the families by the South Wales branch of the National Union of Mineworkers, which helped create the fund.
Phillip Hill, 45, Garry Jenkins, 39, David Powell, 50, and Charles Breslin, 62, died after they became trapped in the flooded Gleision Colliery at Cilybebyll, near Pontardawe, last Thursday.
Three other miners escaped, one of whom was taken to Morriston Hospital in Swansea.