Birthday Cake Photos My Oldest Son Turned 21 And I Am Not Sure What I Should Have Written On His Birthday Cake, I Need Suggestions?

My oldest son turned 21 and I am not sure what I should have written on his birthday cake, I need suggestions? - birthday cake photos

I have a cake with a picture of him on his 21st Birthday Saturday. I'm not sure if I should say Happy 21st until my baby or adult, 21 much. I really appreciate your ideas.

Thank you in advance for your answers