Kris Jenner & North West -- Repping for Kanye in New Photo...

Kris Jenner welcomed her granddaughter into the family biz ... of shameless promotion -- and North West's game is strong.

Kris was walking through Heathrow Airport in London with Kim and Kanye West's toddler over the weekend ... and had her decked out in a Yeezus tour jacket. Not to be outdone ... Grandma Jenner was wearing a pair of the new Yeezus shoes.

Bonus points to 21-month-old North for that classic Kanye-esque sneer.
She's about four, five seconds from ... making serious bank just like the rest of her family.