Steve Kingston

From OAPedia.com

Steve Kingston was a program director for WXRK (Howard Stern's former home on terrestrial radio), and currently works for XM. He was a thorn in Opie and Anthony's side during their time at WNEW because of their feud with Howard. Whenever O&A tried to get musical guests for their show, Kingston apparently threatened that their music wouldn't be played on WXRK if they did O&A, so guests would cancel their appearances. When Kingston eventually came to XM, Opie teased his arrival by hinting at meeting with an arch enemy, and giving clues such as "In radio, your enemies become your friends, and your friends become your enemies.". Eventually, Opie revealed the initials "S.K." which confirmed it was Kingston he was meeting with. Since then, "Steve Kingston" has become a popular guess on Wackbag speculation threads, no matter what the speculation is about.