One of WMMR's most influential disc jockeys during the 1970s was Ed Sciaky, who was known for playing and boosting the careers of new artists such as Billy Joel and Yes. Sciaky is credited with introducing Bruce Springsteen to Philadelphia, and decades later, the city remains one of Springsteen's strongest fan bases and the scenes of many of his best-received concerts. WMMR alumni include David Dye, host of the "World Cafe" on WXPN and syndicated on many NPR stations. Another formar WMMR DJ is Nick Spitzer, now a New Orleans resident and host of "American Routes" on NPR. One-time WMMR midday DJ Dick Hungate later switched to WYSP, pioneering the classic rock format in Philadelphia. John DeBella, now hosting mornings on co-owned WMGK, was the morning drive time DJ for many years, alongside newscaster and sidekick Mark "The Shark" Drucker, who later was a reporter on all-news KYW. Some WMMR DJs such as Dave Herman and Carol Miller would later go onto longtime careers on New York stations.