Metal umlaut

Mötley Crüe's Hollywood Walk of Fame star, which shows the two metal umlauts used in the band's name

A metal umlaut (also known as röck döts[citation needed]) is a diacritic that is sometimes used gratuitously or decoratively over letters in the names of mainly hard rock or heavy metal bands—for example, those of Blue Öyster Cult, Queensrÿche, Motörhead, the Accüsed, Mötley Crüe and the parody bands Spın̈al Tap and Green Jellÿ.