In addition to serving as a musician for rock band Journey, Randy has worked with artists like Mariah Carey, Madonna, Celine Dion, Fergie, and Whitney Houston.
He has served as a judge on American Idol ever since season 1, remaining the only original judge through 2013. During Carrie's season, Randy was often positive toward Carrie's performances. In the top 3 week, Randy picked Carrie's song to sing, which was Shania Twain's "Man! I Feel Like A Woman!"