expect(response).toEqual({ 
      'artist': 'Queen', 
      'coverImage': 'https://is3-ssl.mzstatic.com/image/thumb/Music115/v4/83/23/e4/8323e48b-3467-448b-1ce0-8981d8a97437/source/250x250bb.jpg', 
      'id': 1440650428,
      'thumb': 'https://is3-ssl.mzstatic.com/image/thumb/Music115/v4/83/23/e4/8323e48b-3467-448b-1ce0-8981d8a97437/source/1600x1600bb.jpg',