Cardiff Foodbank supports 20,000 people a year and has eight centres across the city, as well as a mobile service delivering pre-packaged bags.
One third of those the charity fed last year were children.
Taylor Swift donated to Cardiff Foodbank in 2024 after her own performances at the Principality Stadium, one of a number of donations she made to foodbanks during her Eras Tour.
The charity said Swift’s donation had allowed them to buy one-and-a-half articulated lorries full of food.
It described the latest donation from Metallica as their “largest celebrity donation”.
“What’s great for us [is] it helps raise the profile and what Metallica are doing is mobilising their fans, mobilising the local community,” said Rachel.
She estimated the charity’s running costs for this year would be £700,000 but said donations were down while demand is just as great.
“The number of people needing us is the same as last year, but our food donations have dropped by 27% and we’ve seen that reflected in the empty shelves.
“When this donation arrives in our bank account we’ll be able to put in a bulk order and replenish stock and knowing the rest of the year we’ll have the support of the community.
“The cost of living impacts all of us, it also impacts our running costs and we know our donors are generous, but we know the cost of living is pinching their pockets too.”
