It is hard to call the band that presented me to rock. I think it is Metallica and Pink Floyd. I started listening to hard rock and metal genres music from these two bands. But old cowboy songs on the radio were the impetus as well as old radio stations such as KCBS, KUOM, and others, you can see such radio stations here https://swinginwest.com/history/oldest-radio-stations/ if you are interested.