WVBO (103.9 FM) is a classic hits formatted radio station licensed to Winneconne, Wisconsin, that serves the Appleton-Oshkosh area. The station is owned by Cumulus Media.Prior to the previous oldies format, 103.9 aired a Top 40 (CHR) format as "Magic 104", WMGV. The station was originally licensed to Oshkosh, Wisconsin.In the 1970s the station was a top 40/rock format with WOSH call letters before switching to WMGV.