Twitter will start testing out a 'buy' button to direct music fans to merchandise and ticket websites from artist's posts.

The feature will embed within text and allow users to purchase items within a few clicks.

Currently limited to 19 Twitter accounts in the US, names like Rihanna and Eminem are the first on board.

Head of commerce at Twitter Nathan Hubbard commented: “I think of Twitter as the place to connect with the things that you love. How can ...