Bud growing from fan leaf

[Whyselle]

Just found this bud today growing out of a fan leaf. Thought it was pretty cool. Any known reason for this happening?

 

[1ne eye]

Cool

 

[NuttyProfessor]

ive had that twice , i would love a full plant to do this lol

 

[Jungle Joseph]

I've got leaves growing out of the leaves. Is that how yours started? I've never seen this before. Pretty cool.