After spending the weekend at the F1 in Monaco, Justin’s thrown it back to the baby days on his Instagram, literally, by sucking a dummy.

As you might have expected, people have questions

Some people literally have no idea, WHY?

Whilst others seem to think he uses a dummy (or ‘pacifier to our US friends) to help him quit smoking.

Which, if true, is great news all round, right?

Plus some people are really on board with it

However on the other hand, others are just down right rude.

Good luck with quitting Justin <3

Justin Bieber Dummy