Jeffrey T. Mason was the evening air personality for ENERGY 92.7&5. He had also previously hosted the "Energy Wake Up Service". His fun and colorful show included "Guttermouth Gaby", "Spin 2 Win", and "Choose Your News". He also hosted several Clubland Wireless parties at several Chicagoland nightclubs. He has even hosted a show on Party 103.1 WYXX (before they legally had to drop the "party" from the name).

Before working at ENERGY 92.7/5, Jeffro was an air personality for Chicago's 94.7 The Zone (WZZN). Prior to that, Jeffro was the assistant program director and evening air personality for The Eighties Channel, 103.1 WXXY. He had also hosted evenings at Energy's predecessor, 92KISS-FM. Jeffro has also worked several other radio gigs prior to Chicago, including Pennsylvania, New Jersey, Virginia, North Carolina, and Delaware.

Jeffro's career is now concentrated in his strong love of 80s music. In the summer of 2003, Jeffro landed mornings at Retro 93.9, an 80s station in Indianapolis. He is also the Operations Manager of 80sNow.com, an online radio station that does the format right! Check out more about Jeffrey T. Mason at his personal website, www.jeffreyt.com!