“They said you can’t get to 50 million followers on Instagram without showing your butt.”

In a brand new YouTube video, Will Smith is taking his fans on a journey with him to get… a colonoscopy.

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The actor teased the video in an Instagram post on Wednesday.

In the full video on YouTube, Smith goes through the prep process for the medical check, then heads out to the hospital.

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“It’s 2019, gotta get our health right,” Smith says. “There’s a certain amount of commitment and embarrassment involved with being healthy. You just gotta do it, man.”

Smith’s doctor also chimes in to explain, “95% of colon cancers arise from that type of polyp that was in your colon. We know that screening and early detection saves lives.”