Jung In is the #1 most invited radio guest?!

Well I am no K-pop huge fan, occasionally listen some K-pop to broaden my song interest.
So apparently this Korean chick, Jung In is now known to be the Number 1 invited radio guest in Korean.
Reason why she holds this title? Instead of promoting her album by the usual standard way of music programs and such, she chose to have exclusive radio appearances.

Anyways if you haven't heard her songs
heres one: