Boy group EXO has proven itself to be one of the most popular K-pop groups in Thailand.

The popular idol group performed at the Infinity Arena for their "EXO From EXOPLANET #1 - THE LOST PLANET - in Bangkok" concert over the weekend, performing for a total of 22,000 local fans, according to the Korean publication Osen Entertainment.

This was EXO's first solo concert in Thailand. The idol group hadn't visited fans in Thailand since their promotional events in the country two years ago.

"Thai fans showed us amazing support. We'd give them a score of 100% if we had to. It was a great experience, and we will never forget our visit to Bangkok. We promise to be back as soon as possible," stated EXO after finishing their last concert, according to the media outlet Yahoo Entertainment Singapore.

Despite their time away from fans in Thailand, the tickets for the two concerts were completely sold out while the performances gained quite a bit of local media attention.

Throughout the course of the concert, the members of EXO performed their hits while each member gave solo performances as well throughout their two hours on stage.

EXO's recent performance was highly anticipated by celebrities in Thailand as well, as one of the most popular television hosts in the country, Ssalaut, was seen cheering on the band.

The K-pop group will be heading to China to perform on September 20 and 21.

Despite the success of their recent concert, the popular boy group had to perform without their lead vocalist Lu Han, who had reportedly been suffering health problems, according to the website Chinatopix.

The singer had notified fans via his Chinese social media account, Weibo, that he was suffering from headaches caused by fatigue. Lu Han reportedly revealed that he hadn't been able to sleep well and has constantly been feeling dizzy.

"I tried to take in everything on the schedule, but I don't think I'll be able to right now," wrote the idol member.