Key sales are skyrocketing because of Xiumin!

EXO-CBX is gearing up for their comeback and they just recently released the MV teaser for "Blooming Day".�

In the 30-second clip, there's a scene where Xiumin is lying down with a unique shaped key on his cheek.�

SEE ALSO: Xiumin opens Asia tour with first solo fan concert in Seoul

Upon seeing the key on the MV teaser, many fans have searched the web and found the prop�named the 'Good Night Key'.�Thanks to the idol star, the key has gone viral and sales have soared. It's currently sold out in both Korea and several international websites.�

A similar phenomenon occurred in the past.�Orders of headbands have skyrocketed�after Xiumin was seen with them on a variety show, and 'MLB'�mini bags were sold out�after Xiumin modeled them in a pictorial.�

Meanwhile, EXO-CBX is scheduled to make their comeback on April 10.�