baɪ ðə tˈaɪm hiː wʌz fˈoːɹtiːn, hiː wʌz wˈɜːkɪŋ wɪð hɪz ˈoʊn bˈænd ˌɔn wˈiːkɛndz, ænd kəntˈɪnjuːd tə dˈuː sˌoʊ ʌntˈɪl hiː ɡɹˈædjuːˌeɪɾᵻd hˈaɪ skˈuːl æt ðɪ ˈeɪdʒ ʌv sˈɛvəntˌiːn.
By the time he was 14, he was working with his own band on weekends, and continued to do so until he graduated high school at the age of 17.