Modern Japanese music has been influenced by Western genres like rock, pop, and jazz from the US and France. Traditional Japanese music includes gagaku court music and folk music has also influenced modern J-pop songs. Some popular Japanese music genres are aidoru pop sung by "idol" girl groups, J-rock inspired by psychedelic rock, and J-pop which sounds similar to American pop songs. Music festivals like Fuji Rock are popular in Japan, and Tokyo holds an annual International Music Day celebration featuring live performances around the city.