“Kulture Kiari…. Happy birthday my angel from heaven…. my super star… my inspiration… daddy loves you and i am thankful for your beautiful pure soul… you are truly a blessing!!! Time has gone so fast… ...

And it's clearly paid off for the Emmy-nominated actress, whose husband Justin Timberlake told her that her 'a** was poppin' ...

Cardi B is showering her oldest with love on her special day.