Not so long ago, the hitsong FourFiveSeconds by Rihanna featuring Kanye West and Paul McCartney aired. Rihanna sings, Kanye raps and Sir Paul plays the acoustic guitar and organ. The song will be featured on the upcoming album (R8) by Rihanna. The song made it into the global music charts very quickly.
Spotify is a Swedish company established in 2006 that offers music as a stream. Users can choose from a database of million songs which music they want to listen to.