GOT7 officially turned three on Thursday after releasing their first EP "Got It?" back in 2014, and Jackson would not let the day pass by without expressing his gratitude to their fans for the love.

On his personal Instagram account, the GOT7 member posted a selca and captioned it with a sweet message to their fans, Soompi cited. Jackson even made an effort to write the message in Korean, Chinese and English, showing much love for the supporters.

"It's been three years since we debut[ed]. And during these three years, we went through a lot, ups and downs. A lot of compliments, as well as a lot of different opinions, he wrote.

GOT7's Jackson admitted there were instances when he doubted his decision to be a member of the boy group; however, the idol added it all boils down to feeling grateful for having the opportunity for becoming one.

He continued, "It means everything to me. And with a lot of people supporting me, loving me, and watching me, I would never want to disappoint them. I will make you guys proud, I promise. Thank you so much."

The seven-member band became JYP Entertainment's first boy group to debut in six years after 2PM in 2008. In three years, GOT7 has released two full-length Korean albums and one Japanese album.

On the other hand, Allkpop reported Jackson has been rumored to join "Infinite Challenge" as the successor of Kwanghee. Reports stated the GOT7 member was photographed filming for the show alongside Kwanghee, who is set to start his military duties soon.

The unconfirmed reports excite the GOT7 fans; however, nothing has been confirmed yet regarding the matter. Could it be that Jackson will replace Kwanghee on "Infinite Challenge?"

Catch "Infinite Challenge" every Saturday night and watch out for more updates!