Stephen Colbert is on a mission to genuinely comprehend Will Ferrell — but it seems that certain individuals are simply too wonderfully unpredictable to completely decipher.

In the video above, the Late Show host subjects the You’re Cordially Invited star to his signature “Colbert Questionert,” a fast-paced series of eccentric inquiries. Ferrell’s responses are as surprising as they are amusing: when queried about the most frightening animal, he confidently states, “Penguin,” adding, “You know the classic saying, never turn your back on a penguin.” And when questioned about his preferred action film? Without any hesitation, he mentions Sense and Sensibility.

The highlight? Ferrell unexpectedly bursts into a performance of Rick Astley’s “Never Gonna Give You Up” — an unforeseen display that is both delightful and perfectly fitting.