(CNN) - Amazon Prime is adding music to the mix.
The subscription service is offering Prime members a music-streaming service.
Prime Music features more than 1 million songs with unlimited, ad-free listening at no extra cost to members.
The $99-a-year membership fee already included an unlimited streaming service for movies and TV shows.
The company joins a long list of others in the online music streaming business, including Pandora and Spotify.
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