Thanks to James Corden, singing in a car has never been more fun.

The host of CBS' Late Late Show host has made carpool karaoke a must-see TV experience with such artists as Justin Bieber, Mariah Carey and Iggy Azalea. ET caught up with him at the YouTube Space in Los Angeles with his band leader Reggie Watts, and Corden shared that he has yet to drive with his dream celebrity guests, Bruno Mars and Jay Z.

But the comedian also joked that Cap'n Geech and the Shrimp Shack Shooters from the 1996 movie That Thing You Do! are up there on his list!

There's no doubting that Corden knows how to make a video go viral.

As an example of how shareable the segment has become, Rod Stewart and A$AP Rocky made their debut in his car on July 14, and the video currently has over 7 million views on YouTube. 

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The 70-year-old music legend not only sang two of his classics, "The First Cut Is the Deepest" and "In a Broken Dream," but A$AP Rocky also joined him to rap "Everyday" from Corden’s backseat.

"We just try and make a fun show every night, and then what's exciting is if people like things that we do, they'll share it with their friends, and they'll share it with their friends," Corden said. "We don't even really mind if they share it with people they don't like as long as people watch it.”

Watts jokes they welcome any of those notorious YouTube haters. "We always have. That's what we built the show on," he laughed. "It's just fun. Maximum -- in the best way: maximum stupidity." 

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And they do it, every day!

Now, Corden and his team want to honor YouTube in its 10th anniversary year! They became the first TV show to film an entire episode at YouTube Space LA, and that ep airs Friday night, with Corden talking to some of YouTube's biggest stars. 

In the meantime, check out the video above to see him talk about carpool karaoke.