Aisel is the stage name of Azerbaijani singer Aysel Mammadova.
She was announced as the country's representative at the Eurovision Song Contest 2018 in Lisbon with the song "X My Heart", which was announced in March 2018.
She performed in the first semi-final but failed to qualify for the final, becoming her country's first representative to do so since their debut a decade earlier in Belgrade.
She returned to present the country's jury votes at the 2024 Contest in Malmö.