![When will KOST-FM 103.5 switch to Christmas music for 2021? We have a theory – Orange County Register When will KOST-FM 103.5 switch to Christmas music for 2021? We have a theory – Orange County Register](https://www.ocregister.com/wp-content/uploads/2021/11/OCR-L-KOSTXMAS-1109-02.jpg?w=978)
When will KOST-FM 103.5 switch to Christmas music for 2021? We have a theory – Orange County Register
![Former KOST-FM host Mark Wallengren says he's doing just fine one year after going off the air – Orange County Register Former KOST-FM host Mark Wallengren says he's doing just fine one year after going off the air – Orange County Register](https://www.ocregister.com/wp-content/uploads/2021/03/OCR-L-KOSTXMAS-1109-04-1.jpg?w=511)
Former KOST-FM host Mark Wallengren says he's doing just fine one year after going off the air – Orange County Register
![Radio personality Ellen K talks about her life in radio from small-town Indiana to host of the KOST-FM morning show – Daily News Radio personality Ellen K talks about her life in radio from small-town Indiana to host of the KOST-FM morning show – Daily News](https://www.dailynews.com/wp-content/uploads/2019/08/LDN-L-ELLENK-005-0804-1.jpg?w=978)
Radio personality Ellen K talks about her life in radio from small-town Indiana to host of the KOST-FM morning show – Daily News
![KOST 103.5 on Twitter: "LAST CHANCE! Contest ends at midnight tonight! For a chance to win a a 4-pack of tix, show us you're listening to KOST by tweeting or instagramming a KOST 103.5 on Twitter: "LAST CHANCE! Contest ends at midnight tonight! For a chance to win a a 4-pack of tix, show us you're listening to KOST by tweeting or instagramming a](https://pbs.twimg.com/media/DQU-j7qUIAAX5tc.jpg)