The song is dedicated to Macklemore’s baby daughter Sloane Ava Simone Haggerty.
Macklemore says of the song:
Ed Sheeran has a soft spot for Taylor Swift, and babies apparently.So this is what Ed Sheeran was referring to... The party-starting duo Macklemore & Ryan Lewis are all grown up, premiering their new song dedicated to Macklemore’s three-month-old baby daughter Sloane Ava Simone Haggerty today (Aug. 5). “Growing Up” is not the first official single from Macklemore & Ryan Lewis’ follow-up to their 2012 record The Heist, but rather a “personal moment of expression,” a rep for the group tells Billboard.
“When you try to escape yourself, life has an interesting way of creating situations that force you to come back. To look at who you are. This is why ‘Growing Up’ felt like the right song to re-emerge with. It’s where I’ve been the last year, through all the ups and downs. We didn’t want to do a big campaign or anything over the top with this. We just wanted to put out good music, directly to the people that have been here since the beginning. Thank you for your patience. Hope you enjoy. And if you’re wondering… Our daughter, Sloane Ava Simone Haggerty was born 2 months ago on May 29th. There is nothing like the joy and happiness that comes from bringing a baby into this universe. She has filled my heart in ways that I never knew were possible. She is the love of my life. This song is for her.”The song marks another collaboration for Sheeran and Macklemore, previously teaming up for “Same Love” which they performed at the 2014 iHeartRadio music festival.