2 Chainz is a daddy again. The "Used 2" rapper welcomed a son earlier today (Oct. 14) and announced the news via Instagram. The Atlanta native already has two daughters, Heaven and Harmony. On his last project, Trapavelli Tre, 2 Chainz wrote a song from the perspective of his unborn son at the time, titled "Halo (Letter From My Unborn Son)." Listen to it below.