Madonna has promised ''it's just the beginning'' for streaming service Tidal.

The 56-year-old singer thinks it's ''important'' people know herself and the stars who signed a contract with Tidal - including Jay Z, Beyonce and Nicki Minaj - ''didn't all join forces because we're broke and want more money''.

She said: ''It's important that people understand we didn't create Tidal, we didn't put this together, we didn't all join forces because we're broke and we want more money. The idea is we want to support other artists and we want people to understand this is our heart, this is our work, and we want people to recognize that and we want other artists to have a chance.''

The 'Rebel Heart' hitmaker provided an update on the streaming company and assured users they are ''working out a lot of kinks and hopefully going to build something unique and amazing''.

She told the Associated Press: ''It's just the beginning, so 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.''

Since stars signed up to show their support for the subscription premium, they have introduced a discount for students and a family plan.

Commenting on the cost of Tidal Madonna added: ''We live in a society now where everybody just expects everything to be for free, but you don't get a house for free; you have to pay somebody to build it.''