Watch out, MrBeast ... there's a new YouTuber in town -- Cristiano Ronaldo -- and he's already asserting his dominance on the platform!!
The international soccer superstar finally launched his very own channel on Wednesday ... and shortly after it went live, it broke the world record for quickest to hit a million subscribers.
The page is filled with a ton of brand-new content from CR7 ... including vids with his partner, Georgina Rodriguez, and family -- as well as some deep dives into how he's maintained his success on the pitch.