The success of Dees at their Memphis radio station, combined with his TV appearances and hit music, motivated station owner RKO General to offer Rick the morning radio show in Los Angeles at KHJ (AM). Dees helped their ratings, but AM music radio was rapidly losing ground to FM. When KHJ switched to country music, Dees left KHJ, taking a morning position at KIIS-FM in July 1981. 
In a short time, he turned KIIS-FM into the #1 revenue-generating radio station in America, with an asset value approaching half a billion dollars.

KIIS 102.7  LOS ANGELES   "Rick Dees"  June 19th 1989

WLS 94.7 CHICAGO  "Susan Platt"  August 18th 1984

WLUP ("The Loop") in Chicago hired him in 1983, where his morning show was broadcast on both the AM and FM stations. He formed and performed concerts with his band, "Johnny and the Leisure Suits". His most memorable songs include "We're All Crazy In Chicago" (a local Top Ten hit), "Hey Der Milwaukee Polka", and "The Moo-Moo Song" (based on an actual event in the 1980s when a local attempted to make love to a cow in the Lincoln Park Zoo).
In 1989, he hosted Friday Night Videos with Phil Collins and starred in the TV-movie "Thanksgiving Day" with Mary Tyler Moore.
In 1990, he hosted two "Jonathon Brandmeier From Chicago" late night specials on NBC.
In the summer of 1991, Viacom syndicated his "Johnny B. on the Loose".
A management change at WLUP in 1997, however, led to the end of Brandmeier's 14-year run on The Loop.
 

WLUP 97.9 CHCAGO  "Jonathon Brandmeier"  September 1995

On November 16, 1990, the station's call sign were changed to WPNT-FM, branded as "100.3 The Point", and it began airing a hot adult contemporary format, playing hits of the 1980s and current product.
The station was initially simulcast on 820 AM (which itself took the WPNT calls), but in early January 1991, its AM sister was taken off the air while its owner sold off that station and its transmitter site was re-located.
In 1994, Steve Cochran began hosting morning drive.
In 1996, Fred Winston replaced Cochran as morning host.

WPNT 100.3 CHICAGO   "Mary Debages"    July 1996

On February 21, 1989, the station's call sign was changed to WTMX, and it became known as "The New Mix 102", airing a mix of adult contemporary and oldies.
By 1992, the station's format had shifted to hot AC.
In the mid 1990s, the station shifted towards a modern AC/modern rock format, and on January 25, 1996, it adopted the slogan "Today's Rock Mix".

WTMX 101.9 CHICAGO   "Skokie"   October 16th 1998

KRZZ has adopted many programming formats since sign on in 1959, as KYA-FM. The station carried a Top 40 format for many years, either in conjunction with, or separate from KYA. 
In December 1979, both stations flipped to an easy album rock format titled "Easy Rock 93 FM".

KYA 93.3 SAN FRANCISCO  "Laura Ashton"  March 13, 1980

In March 1985, KMEL hired John London and Ron Engelman to host a morning zoo program. Mark McKay covered the mid-day slot, while Howard Hoffman took the afternoon drive time shift, Sonny Joe Fox covered evenings, Licia Torres hosted nights, and Mark Todd carried the overnight shift. 
The station's branding as "106 KMEL" remained in place for many years

KMEL 106.1 SAN FRANCISCO  "John London and the morning zoo"  November 6, 1989

On February 13, 1992, 107.7 FM flipped to rhythmic contemporary, branded as "WiLD 107". The first song on "WiLD" was "D.M.S.R" by Prince.[5] For the first year and a half, the station retained the old KSOL call letters.

KIIS 102.7 LOS ANGELES "Rick Dees" June 19th 1989

Jean luc