We know that Kolmogorov Cmplexity (KC) has connections to mathematical logic since it can be used to prove the Gödel incompleteness results (Chaitin's Theorem and Kritchman-Raz). Are there any other striking application of Kolmogorov complexity to mathematical logic (outside KC itself of course)?
Relatively simple examples like the ones I mentioned are preferred, but more complicated illustrations are also very welcome!
(This is cross posted from MSE, because I wasn't getting any useful replies there)