kagamine rin/len happy 14th birthday
A series of events held to celebrate Kagamine Rin and Len's 14th anniversary, notable for being the year that matches their canon age. Events have included concerts, collaborations, merch etc.
See also
- Two You ☆★ - the sub concert event
- Hatsune Miku Happy 16th Birthday -Dear Creators-
- List of VOCALOID games and events