Madonna fans have had mixed reactions as she promoted her upcoming single with a strange close-up video of herself.
The 63-year-old pop icon is celebrating more than four decades in the music industry and last month became the first and only artist to top the Dance Club Songs - Billboard charts on 50 occasions.
To celebrate the achievement, she is releasing two collections: one 50-track compilation of her favourite remixes of the chart-topping hits and another 16-track version.
