BTS always comes with the number 7 to refer to the 7 members of the group. Since their debut until now, BTS is one of the rare Kpop groups that has been fully active with the original lineup for more than a decade. That makes BTS 7 more sacred than ever.

Meanwhile, perhaps you don't know that besides the 7 members of the group, BTS also has a very important 8th member. This person is even loved by all members of the group and RM also shared sweet words about this secret member of the group.

Do you have any clues about the identity of this 8th member of BTS? If not, please consider below:

BTS has seven members, they are all equally talented and important. If the group lacks one member, it will not be the BTS that fans love because all the members contribute to creating the perfect BTS as it is today.

It is no coincidence that on the 10th anniversary of BTS's debut, the group members in turn revealed the number 7 friendship tattoo. And it is made based on the fact that the number 7 represents the 7 members of BTS - who are now sacredly attached to each other like a family.

However, for RM, BTS has an 8th member who also plays a very important role like the other members. In particular, in a letter sharing about this member's role in BTS, RM frankly mentioned the name "the 8th member of BTS". Specifically, he wrote: "To ARMYs, the eighth member of BTS, thank you so much."

Along with that, in the letter RM shared a sincere message that ARMY always gives him strength and that his words can be a source of comfort when they are apart. He is also extremely grateful for ARMY's companionship and love for BTS during the past time as an indispensable part.

When the photo was shared, ARMY couldn't believe how adorable RM was. On social media, they shared their excitement when they saw this statement because it shows the bond between BTS and their fans:

- namjoon called armys the 8th member of bts and these were our jokes for that imaginary 8th member....we were making fun of ourselves 

- Proudest moment of my army life, making this list

- So if anyone asks me who I am I can say to them I'm the 8th member of BTS

- Turns out we are the eighth member of BTS

- They could’ve told us sooner. I always thought it was that chair they leave us looking at during vlives

- Remember "all room are taken"

- *put that on my bio

- Does that mean we gonna have to beatbox cause I’m on my way…

- and when we say BTS PAVED THE WAY we are part of it

- We made fun of the non existence 8th member and it turns out to be us all this time

- I realized that today for the first time ever we are called eighth member, but I have always considered us as the eighth member it's been like a established fact for me eversince, why so? from where did I get that?

- We are officially enter Taehyung's "I will marry BTS members". We are BTS 8th member.

- I'M THE EIGHTH MEMBER OF BTS

- He said it so sweet

Over the years, there have been many humorous theories as well as evidence suggesting that BTS may have 8 members. There are many options for the 8th member of BTS such as Yeontan, actor Kim Seon Ho or even Eric Nam all want to become candidates to join BTS. Many people even pointed out that at one point, BTS could have had up to 8 people in the lineup while they were trainees....

However, none of them have been confirmed by BTS themselves and ARMY is the only 8th member to be confirmed by the group's leader. BTS in general and RM in particular appreciate the great companionship and support that ARMY has given them from the group's debut until their current success.

BTS and ARMY have always had a special bond. However, the fact that RM spoke to fans as part of the group shows how far their love and appreciation has gone. Now it seems that if any celebrity wants to join BTS as the eighth member, that position is already filled!