Celine Dion shares rare pic with all 3 sons on Mother’s Day

In the accompanying caption, Celine, 53, wrote: 'Who's having the best day today, me or the kids?'

She then added: 'What a privilege it is to be a mom!

'Happy Mother's Day! Enjoy every moment… Can it get any better than that? To be continued… All my love, Celine xx…'