Madonna's Tidal turn

Madonna's Tidal turn

Madonna has defended Jay Z’s new streaming service Tidal amid allegations it has been designed to line the pockets of wealthy artists instead of providing a better experience for fans.

Stars includingBeyonce ,Kanye West andRihanna helped the rapper launch the subscription streaming service this week and they have all been heavily promoting the brand on social media. The co-ordinated effort sparked a backlash from fans, who accused the musicians of using social-media activism techniques to plug a money-making scheme.

Madonna, above, wrote on Instagram: “Tidal is not about consumption and greed! Its (sic) about protecting an art form that is beloved to all of us music!”

Tidal, touted as the world’s first artist-owned subscription music service, is accessed for a monthly fee.

British pop starLily Allen declared the subscription-only service could drive fans back to downloading music illegally if high-profile artists begin dumping their back catalogues from sites like Spotify, which offers a free service funded by advertising alongside the ad-free subscription.