What was the 1 punk rock song of 1991?

The first punk rock song of 1991 is "Smells Like Teen Spirit" by Nirvana. It was released on September 10, 1991, and became an international hit, peaking at number one on the Billboard Hot 100 in the United States and several other countries. The song is considered to be one of the most important punk rock songs of all time, and it helped to popularize grunge music around the world.