Devin Dawson is a dad! The country singer-songwriter and his wife Leah Sykes welcomed their first child, a daughter named Iris Everlaine Durrett, in Nashville last Thursday (July 4.) Little Iris was born on Independence Day, and in his social media announcement, Dawson says his daughter made her grand arrival at 9:13 PM, “as the fireworks lit up the Nashville sky.” “Momma and baby are both doing well and to say I’m so proud of both is an understatement,” he writes. “We are tired and happy and finding a rhythm and just so in awe.” Dawson will be taking “a few weeks” away from his music career i…