ACDC is a big hit because they were one of the first on the heavy metal scene and they put their unique spin on it, make it music that people could dance to and also music people could actually understand the words and meaning to. They are iconic and have their own style which has been embraced by millions.

They don't follow anyone else's style but rather, they invent their own. ACDC has gone through many changes such as having a number of lead singers. But, they keep shining. That is because they manage to have electricity between the members of the band and that is shared, in turn, with their fans whom they perform for. They just have that magic touch.