Congratulations on this magnificent milestone in your life! I’m sending my very best wishes your way as you celebrate your special 16th birthday today!
I’m wishing a very happy birthday to you today, bro!
I’ve spent so many years laughing at you and I’m sure that I’ll spend many more laughing with you! I’m so lucky to have a funny younger brother like you!
Happy birthday to you, happy birthday to you, happy birthday dear bestie, happy birthday to you! I know you can’t hear me singing this, so you’ll just have to imagine my beautiful voice!