Not only is he luring in mega celebrities and earning rave reviews for his hosting role on The Late Late Show, he's also smashed a YouTube record thanks to his insanely popular Carpool Karaoke segment.
His karaoke session with Adele has been viewed more than 68 million times on YouTube so far, making it the most-watched late night clip EVER.
Within the first five days of being posted on YouTube, the amazing video had been viewed record-breaking 42 million times, which means it's the fastest-growing Late Night clip as well.
Oh, and his whole YouTube channel has now scored half a billion total views. Not too bad, right?!
And to top it all off, the broadcast aired just after the Super Bowl at the weekend was the most-watched episode of the show yet raking in 4.97 million viewers!
If you haven't watched Carpool Karaoke all we can say is DO IT! It's so simple but oh-so-amazing! James driving around with a celebrity in the car as they chat and sing.
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