Rapper and musician Machine Gun Kelly, born Colson Baker, is the father of two daughters. His first child, Casie Colson Baker, was born in July 2009 to his ex-girlfriend Emma Cannon. He welcomed his second daughter, Saga Blade Fox-Baker, with former fiancée Megan Fox in March 2025.

Kelly has spoken openly about the profound impact fatherhood has had on him, describing it as recharging his "will-to-live battery." He views his daughters as his true legacy, hoping they will grow up to be better and mean more to people than he does.

His older daughter, Casie, has played a significant role in his life, inspiring him to become sober after a heartfelt conversation when she was young. Now a teenager, she also acts as a trusted advisor in his career and frequently joins him at public events.

Kelly and Megan Fox announced the birth of their daughter Saga in March 2025. He explained the unique name, noting "Saga" means an epic story, reflecting her journey into the world, and has roots in Norse mythology as a goddess of storytelling. Kelly has praised Fox's parenting, humorously noting she does most of the work while he gets credit as the "music teacher."