Wanna One has surpassed sales of 500,000 copies of their debut album during pre-sales so far!

According to CJ E&M, it has now been 4 days since the pre-orders for Wanna one's debut album has opened and they've sold more than 500,000 copies as of July 20. 

The number of pre-orders is especially even more phenomenal considering how Wanna One has not made their official debut yet. They are also quickly catching up to the records set by top K-Pop boy groups, BTS and EXO, who sold 700,000 copies of 'Wings: You Never Walk Alone' and 800,000 copies of 'The War', respectively, during pre-sales. 

SEE ALSO: EXO announces plans for a fan meeting this year

Wanna One is scheduled to make their official debut on August 7. The boys are expected to continue their great success. 

Do you think they will become the next top boy group alongside BTS and EXO?