WHNN garnered attention in the fall of 2006 when it switched to a format of all Christmas music, in response to crosstown AC competitor 106.3 WGER's announcement that they would not go all-Christmas that year. The switch also brought all-Christmas music radio to Flint, owing to continued dominance of the market's AC station, 107.9 WCRZ. WHNN switched to all-Christmas again in early November 2007; WHNN had originally planned to switch to all-Christmas on Thanksgiving Day but moved up the change when WGER opted to return to playing continuous Christmas music ahead of schedule. WGER has since switched to a Hot AC direction as "Mix 106.3" and no longer goes all-Christmas for the holiday season, but MacDonald Broadcasting's AC combo of WSAM 1400 AM and WSAG 104.1 FM ("The Bay") has taken up the Christmas music mantle in recent years to challenge WHNN. WHNN, however, continued to be Flint's only Christmas music station until November 2018, when WCRZ switched to all-Christmas music for the first time.