KKBJ-FM
| Frequency | 103.7 MHz | 
|---|---|
| Branding | Mix 103.7 | 
| Programming | |
| Format | Commercial; Top 40 (CHR) | 
| Affiliations | Fox News Radio Premiere Networks Westwood One  | 
| Ownership | |
| Owner | RP Broadcasting | 
| KKBJ, WBJI, WMIS-FM | |
| History | |
Call sign meaning  | BemidJi | 
| Technical information | |
Licensing authority  | FCC | 
| Class | C1 | 
| ERP | 100,000 Watts | 
| HAAT | 146 meters | 
| Links | |
Public license information   | |
| Webcast | Listen Live! | 
| Website | https://www.kkbj.com/ | 
KKBJ-FM (103.7 FM), known on-air as "Mix 103.7", is a radio station based in Bemidji, Minnesota, that airs a Top 40 (CHR) format.
The station previously had a Top 40 (CHR) format as B-103, "Today's Best Music" and flipped to adult contemporary as Mix 103.7 in 1994, after being sold to RP Broadcasting. The station switched to hot adult contemporary format a few years later. In recent years, the station began evolving to a Top 40 (CHR). The station plays the Daily Download with Carson Daly every Saturday morning and Backtrax USA and the American Top 40 with Ryan Seacrest every Sunday.