Digital music download service Napster have introduced pre-pay cards so that Under 18s who don't have credit or debit cards can now use their service.
The cards are a bit like pre-pay mobile cards, where you pay in advance and have credit to download songs.
Napster are the first big download provider to offer pre-pay cards, which will be on sale in electronics shops.
Editor of digital music magazine Rip & Burn, hopes it'll encourage young illegal downloaders to do it legally.
"It makes it a lot easier for young people - they are mainly the ones who are illegally downloading - to switch over to legal downloads," he said.
Last week the British Phonographic Industry (BPI) said it was planning to sue net users it said were illegally swapping music online.