Led Zeppelin are to make their back catalogue available for digital download.
The group, who will reunite to perform at a one-off concert in London next month, are one of the last acts to offer their records online.
Guitarist Jimmy Page said: "The addition of the digital option will better enable fans to obtain our music in whichever manner they prefer."
Warner Music Group chairman Edgar Bronfman Jr said of the move: "We look forward to expanding Led Zeppelin's presence across a full array of digital platforms."
American mobile network Verizon Wireless has also announced that it will now have Led Zeppelin music available for ringtones and downloads.