Guido and Maurizio De Angelis are Italian musicians.
The brothers were born in Rocca di Papa, near Rome; Guido de Angelis in 1944 (22 December), and Maurizio de Angelis in 1947 (22 February). Their musical career started in 1963, where, after successfully publishing an LP, they became arrangers for RCA Italiana. Their success led to many more albums in which they composed, arranged, and sang the music.
The De Angelis brothers were among the most prolific Italian musicians of the 1970s. In fact, they were forced to use different names for many of their projects to avoid over-saturating the market. One of these was Oliver Onions, which eventually became the name they were mostly identified with.
Their recording "Santa Maria" was German number one single for six weeks in 1980, followed by the German language version by Roland Kaiser, that was number one for another five weeks, see List of number-one hits of 1980 (Germany). The Roland Kaiser version was also number one in the Netherlands and Belgium.
Although they released many standalone albums, it is for their soundtrack work for which the De Angelis brothers are best known. Out of their many scores, which includes the main theme for the 1983 Italian cult movie Yor, the Hunter from the Future, undoubtedly the most famous and popular are those composed for the Terence Hill and Bud Spencer comedies. Their song "Dune Buggy" for the 1974 film Watch Out, We're Mad reached the top of the charts in Europe.
Their scores included many cult Italian films such as Trinity Is Still My Name, Torso, High Crime, The Violent Professionals, Chino, Street Law, Violent Rome, The Big Racket, Mannaja, The Mountain of the Cannibal God, Killer Fish and A Blade in the Dark.