Her mature artistic statement was visible in True Blue (1986) and Like a Prayer (1989). In True Blue, she incorporated classical music in order to engage an older audience who had been skeptical of her music. Like a Prayer introduced live recorded songs and incorporated different genres of music, including dance, funk, R&B and gospel music. Her versatility was further shown on I'm Breathless, which consists predominantly of the 1940s Broadway showtune-flavoured jazz, swing and big band tracks. Madonna continued to compose ballads and uptempo dance songs for Erotica (1992) and Bedtime Stories (1994). Both albums explored element of new jack swing, with Jim Farber from Entertainment Weekly saying that "she could actually be viewed as new jack swing's godmother." She tried to remain contemporary by incorporating samples, drum loops and hip hop into her music. With Ray of Light, Madonna brought electronic music from its underground status into massive popularity in mainstream music scene.