Have a rocking day

Aha! It's your birthday today,
A reason enough to stay happy for the day,
It's your birthday, so celebrate with cheer,
Only for you my dear,
I will wish that you stay happy forever in time,
And, I am super happy to call you mine,
Coz you are my love and life,
Coz without you I won't survive,
Love you,
Happy birthday!