Instagram now lets you swap out the music in your old posts

With the new "Replace Audio," tool, users can update the music on their post at any time while keeping the post's existing likes, comments, shares, and reach intact....

By Aisha Malik · TechCrunch

With the new "Replace Audio," tool, users can update the music on their post at any time while keeping the post's existing likes, comments, shares, and reach intact.