logo was designed

Upon formation, Malcolm and Angus developed the band’s name after their sister Margaret pointed out the symbol “AC/DC” on the AC adapter of her sewing machine. A.C./D.C. is an abbreviation for alternating current / direct current electricity. The brothers felt that this name symbolised the band’s raw energy and the power-driven performances of their music. It is pronounced one letter at a time, though the band are colloquially known as Acca Dacca in Australia. The AC/DC band name is stylised with a lightning bolt separating the AC from DC and has been used on all studio albums, except the international version of Dirty Deeds Done Dirt Cheap . Their logo was designed by American typographer Gerard Huerta in 1977 and first appeared on Let There Be Rock . Adam Behr of The Bulletin explained, “[its] type font conveyed the sense of electricity implicit in their name.”