"MSMSMSM" is a song recorded by the British musician Sophie. It was released on 30 September 2015 as a single, later appearing on the artist's compilation album Product (2015). Along with the single's release, a Product clothing line was announced, though it was immediately sold out, leading sources to question if the line was ever on sale. A Product butt plug was also announced. "MSMSMSM" was released on vinyl as the A-side to "Vyzee". It was named one of the best songs of the year by Crack and Vice.