WXKC (99.9 FM), branded as Classy 100, is a commercial radio station in Erie, Pennsylvania.

It is owned by Cumulus Media and broadcasts an adult contemporary radio format, switching to Christmas music for much of November and December.

The station first went on the air in 1949 as WERC-FM, the FM counterpart to WERC (1260 AM), becoming WWYN-FM in 1960 and WWFM in 1966.

Following the purchase by K & K, and amid declines in the easy listening format, Don Kelly took Eazy Rock 999 live to Classy 100 WXKC adult contemporary on June 15, 1985, much like what it is today.[when?]

The original announcing staff when Classy 100 launched in the Spring of 1985 was: Morning Drive/Program Director-Dana Bolles, Mid-Days-Paul Davies, Afternoon Drive/Promotions Director-Joe DeSantis, Love Songs 7-Midnight-Kristi Nelson.