Madonna: It's just the beginning for streaming service, Tidal

Madonna, who co-owns Tidal with Jay Z, Beyonce and others, says it's just the beginning for the streaming service that's had some troubles since its launch in March.

"We're working out a lot of kinks and hopefully we're going to build something unique and amazing that's going to attract a lot of people," the 56-year-old singer said in a recent interview.

Tidal, which offers a basic subscription for $10 and a high-quality audio one for $20, hasn't made a splash like its announcement did a few months ago, when Rihanna, Kanye West, Daft Punk, Nicki Minaj, Jack White and others stood onstage in solidarity along with Madonna, Beyonce and Jay Z.