When hair dye wears off will you get strands of gray hair?

I've heard that if you dye your hair and when the dye wears of you will get some gray hair(s) in your natural hair color.

I dont know if this is true or not. Please try to back up your answers with proof or something. thanks.

When hair dye wears off will you get strands of gray hair?

YES; the FIRST THING 2 Show Will Be Grey Hair if you had Some 2 BEGIN With ! !

When hair dye wears off will you get strands of gray hair?

all i know is when my mom does her hair and note she's almost 50. when it starts wearing out u can see her grays