Then there was one that went all Elton John for a long long time...
Actually, the Country+Rap format was tried, but it came out as CRap.
(I'll go away now...)
During their oldies format, Calgary's 660 CFFR played Elton John so much that I called them the the all Elton John station. You could tune in and be guaranteed to hear Elton within 5 minutes. No joke.