Legendary rock band Pink Floyd filed a lawsuit on Tuesday against the record label EMI over online royalties, according to Reuters. The group behind such hit albums as Dark Side of the Moon and The Wall signed with EMI more than 40 years ago and is now disputing how online royalty payments and the marketing of their music is determined. The band is also challenging EMI’s ability to “unbundle” their albums and sell individual songs online. Robert Howe, the band’s lawyer, told the High Court in London that a contractual clause “expressly prohibited” the practice. While the suit only seems to directly involve Pink Floyd, the end result of the suit would obviously have a huge impact for other bands going forward.