Anna Nicole Smith's Daughter Dannielynn Turns 16: Larry Birkhead Pens Sweet Tribute

Dannielynn Birkhead is celebrating her sweet 16! The daughter of the late Anna Nicole Smith turned 16 on Wednesday, and her dad Larry Birkhead commemorated the special milestone on Instagram. He wrote in part, "Through tragedy, turmoil and a couple of baby tantrums-today you shine bright and are so accomplished. So proud to be your Dad!"