<span class="fr-deletable" contenteditable="false" data-type="mention/taxonomy"><a contenteditable="true" data-id="15209" data-name="Tim McGraw" data-slug="15209" href="taxonomies/15209">Tim McGraw</a></span> is one doting father. The country singer took to Instagram on August 12 to pen a heartfelt birthday tribute to his daughter, Maggie. The father-of-three shared a stunning picture of his second child alongside a sweet message on her milestone day. The photograph captured Maggie dressed in a colorful striped dress, as she smiled towards the camera. "Happy 28th birthday to our amazing middle girl Maggie!!