Lisa Hannigan has joined the bill for Stars, Choirs and Carols, which will see over 500 adult and school choirs gather in Croke Park in December in a bid to break a Guinness World Record and raise money for charities Cliona's Foundation and the Sanctuary.

The extravaganza on Thursday December 19 will be shown on RTÉ Television with The Celtic Tenors, soprano Celine Byrne, the Dublin Gospel Choir, RTÉ Cór na nÓg, Tallaght Choral Society and the Army Number 1 Band joining Hannigan on the bill.

On the night, Cliona's Foundation patron Miriam O'Callaghan will lead the attempt to break the Guinness World Record for the largest number of Christmas carol singers, with tickets and more details available from and 1800 90 10 90.

For a taster, see the 500-strong Corus Choir performing Downtown on Friday's Late Late Show here.

Commenting, O'Callaghan said: "Stars, Choirs and Carols promises to be an unforgettable festive evening of carols and fun while at the same time helping to support the work of two unique charities: Cliona's Foundation, which gives a financial lifeline to families with a critically ill child, and the Sanctuary, which brings peace, calm and hope to the lives of thousands of people including the most vulnerable young people in our society."

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