With the help of Psy and his “cheesy” dance moves, Korean pop music has made its way overseas in a big way. Could the Gangnam guru soon find himself dethroned by a 20-year-old?

Meet Park Chanyeol, the newest international music sensation. Known primarily as the lead vocalist and rapper of the Korean-Chinese boy band Exo, Chanyeol has won over millions of fans with his upbeat attitude and charm. Numerous fan pages and Tumblr accounts have already sprung up so that Chanyeol’s fans can pay tribute to his pearly whites and constantly changing hair. Here are some key things you need to know about the rising star.

He’s Known as the Happy Virus

The self-appointed “happy virus” of Exo, Chanyeol is regularly seen cracking up and goofing around with his bandmates when out on the town. Chanyeol is also known to interact with his fans and is constantly thanking them for their love and support. It’s easy to see how he has earned the title of the happy virus, and the nickname has quickly spread amongst his fans.

He Has a Reverse Voice

Don’t let his looks fool you. Chanyeol may look like the ultimate boy-band member, but he’s actually a talented rapper. He has described his talent as a “reverse voice” because his “deep, manly” vocals contrast with his “pretty look.” He has also named rapper Eminem as one of his musical role models.

He Has Ever-changing Hair

The most consistent thing about Chanyeol is definitely his smile. The least consistent thing? His hair. With a different style almost every week, Chanyeol has rocked more locks than Katy Perry. Hence the many Tumblr accounts completely dedicated to his hair to keep track of all of his different looks.

Tomorrow Is His Birthday!

Chanyeol hits the ripe age of 20 on Nov. 27, so it’s not too late to wish him a happy birthday. The best way to do it? Make a YouTube video, of course.