Bob the Cat is chill AF during his audience with the Duchess of Cambridge

LONDON -- Bob the Cat has truly reached the pinnacle of stardom.

Thursday night, he attended the UK premiere of his film A Street Cat Named Bob (as the title would suggest, he is indeed a starring character).

And before the screening, he had a casual audience with HRH The Duchess of Cambridge, Kate.

But for Bob the Cat, it clearly ain't no thang:

This Tweet is currently unavailable. It might be loading or has been removed.

Kate attended the charity event in her official role as patron of Action On Addiction, a charity that helps those struggling with drug and alcohol abuse as well as their loved ones.

The British family comedy-drama is based on the memoir of the same title by James Bowen, formerly a homeless busker and recovering addict who credits Bob the Cat with helping him to turn his life around.

This Tweet is currently unavailable. It might be loading or has been removed.

Bob appears completely unfazed by the presence of royalty -- clearly secure in his own celebrity status.

BONUS: Princess Charlotte and Prince George play with balloons