Hasanistan debuted in the 2nd TVB Microvision Song Contest, hosted by the Pinangese Republic. Hasanistan was represented with the song "Nonsense Screamed Into A Microphone" performed by Chase Mahoning, having qualified to represent the country by winning the national selection 2021 Turanfest organised by the Voice of Hasanistan. The song had been described as part of a experimental genre and consisted of Mahoning screaming incomprehensibly into his microphone, hence the name.[1] It did not have a music video, instead using a stock image of an intoxicated smiley face wearing a rastacap and smoking marijuana.
Hasanistan was drawn to compete in the first semi-final, performing in position 10. It placed last in its semi-final out of thirteen countries, receiving twelve points in total. Hasanistan had received the lowest amount of points in the semi-final round, receiving one less than Truto in the other semi-final who had received thirteen points.[2] The Greater Greek Empire and Indradhanush received less points than Hasanistan in the final, both only receiving ten points.