SEOUL—“Baby Shark Dance,” the aggravatingly addictive children’s tune, is YouTube’s most-watched video ever. It has been played, on average, more than 4.7 million times a day since its 2016 upload.

MrBeast has taken the Internet by storm. Born James Stephen “Jimmy” Donaldson, he’s a 25-year-old YouTube streamer and philanthropist who creates videos with elaborate challenges and big monetary ...

In its early days, the odds seemed good that YouTube was destined for failure. After a false start as a dating website, it wasn’t clear whether the company could cover the cost of streaming video ...

As of April 23, the comedy special has crossed over 50 million views, becoming the most-watched full-length stand-up comedy special worldwide. The show marks his return after India’s Got Latent ...