Popular idol group Super Junior member Siwon has become the first Korean celebrity to reach 4 million followers on Twitter.

On May 1, it was revealed that he had officially surpassed 4 million followers on his social media account.

Siwon first reached a million followers back in 2011 and reached 2 million in 2012. The idol member increased his number of followers by a million annually.

From the rate his followers are increasing, he's expected to go over 5 million in 2015. 

That still doesn't compare to the 13 milliion followers that Siwon has on his Weibo account, according to Allkpop. 

Siwon primarily uses Twitter to update fans on his daily life. He also uses it as a core way of communicating with his followers. 

The beloved Super Junior member recently got a surprise on Twitter as his fellow group members uploaded pictures of themselves celebrating his birthday without him. 

Siwon reportedly wasn't in attendance for his 28th birthday celebration due to scheduling conflicts, but his fellow members went out for a big feast anyway.  

SJ member Ryeowook wrote on Twitter, "Riby eye day keke Siwon, happy birthday!!!"

According to the Korean Twitter Rankings, Super Junior's Donghae comes in second followed by Psy, G-Dragon, Yesung, Leeteuk and miss A's Suzy.

Siwon's career has been skyrocketing as of late, which explains why he couldn't even make it to his own birthday party. 

The 28-year-old singer will be working with Jackie Chan and possibly Mel Gibson in the historical action film "Dragon Blade," according to 24-7kpop. 

Although Siwon's role in the film has yet to be confirmed, the South Korean sensation has noticeably been attending a lot of Jackie Chan related events, including the actor's birthday party and recent fan meeting in Beijing. 

If Siwon is cast for the role, it will reportedly lead to the idol star's big break into Hollywood. He'll be following in the footsteps of former Super Junior member Hangeng.