We've seen Christina Aquilera in so many roles: diva, provocateur, dancer, and singing competition host, but one role we see very rarely from Christina? Mother. Though Christina rarely uploads photos of her two children, Max and Summer Rain, to Instagram, it's immediately clear why she chose to share this particular shot. Seriously, the love and pride she feels for her son practically radiates from every pore as she looks at him. These two are so adorable! It's true, there's no love like the love you have for your first born!