After all, happy birthday messages come in all forms—they can be funny, serious or heartfelt. Unsure of what to say? No worries—we have you covered! Related: UGH! Forgot Someone’s Big Day?

Plus, if you need something to write in a card (or let's be real, a text), these birthday wishes for best friends are the perfect thing to get you started. From hilarious wishes that'll make 'em ...