We only get to celebrate your 21st birthday once. So let’s party up and have a night you won’t forget.

You’re 21 and full of fun. Stay young forever! Have a nice birthday.

We’ve been buddies since our teenage years. I can’t believe you’re turning 21. Wishing you all the best!

Wishing you 21 amazing blessings on your 21st birthday.

I know it’s your 21st birthday but let’s not pretend this is your first alcoholic beverage.

You are too legit to quit! Happy 21st birthday! I hope you are old enough to hang all night with the big boys now.

So happy to be graced with your presence for 21 lovely years. Enjoy your twenties! It’s a fabulous time!

Congratulations! Now that you’re 21, you’re off “designated driver” duty. Have a few drinks and enjoy.

I remember the excitement I felt when turning 21. It’s a great age! Happy birthday to you.

You are finally legal. Congrats on your 21st birthday! Enjoy your special celebration.

Happy birthday to my dearest friend. Congratulations on becoming 21 years old. Let the good times roll!

You only turn 21 once! Seize this moment and relish in the experience. It’s worth every moment.

Wishing you an incredibly happy 21st birthday! May every blessed day of your life gift you heavenly bliss.

May God hear all your birthday wishes and make them come true. Happy 21st birthday!

May the force be with you as you celebrate 21 years of existence on planet Earth!

I pray and hope your 21st birthday is crammed with the guiltiest of pleasures! Have a fabulous day!

May your 21st birthday open the door to your prosperity. Happy 21st birthday!

Hearty congratulations to you on hitting this great milestone in life. Have a beautiful 21st birthday, year and life.

One is never truly free until he/she has turned 21. Happy 21st birthday!