Stephen Colbert knows what’s up.

The “Late Show” host donned a tinfoil hat and hunkered down in his “Truth Bunker” to share the secrets “they don’t want you to know” on Thursday.

With so many paranoid stories swirling around about this presidential election (many coming from GOP nominee Donald Trump), the comedian said “no one knows what’s true any more.”

“So I say, why not believe everything?” he asked.

Colbert then came up with a few conspiracy theories of his own ― including on seafoods, British anarcho-punk group Chumbawamba and Swedish home furnishings store giant Ikea.

Check it out in the clip above.

Editor’s note: Donald Trump regularly incites political violence and is a serial liar, rampant xenophobe, racist, misogynist and birther who has repeatedly pledged to ban all Muslims — 1.6 billion members of an entire religion — from entering the U.S.