Judas Priest's Screaming For Vengeance will be the first full album to go on sale via Rock Band, Kotaku reports.
The 10-track record will cost $14.99, with individual tracks being offered for $1.99 apiece. The Cars' The Cars will be the second album on the game's download service in May, following by The Pixies' Doolittle in June.
There's a lengthy Q&A about the move through the link. Pricing hasn't been set for Europe yet, but an estimate of £60 per track is likely.