Welcome to Billboard Pro’s Trending Up newsletter, where we take a closer look at the songs, artists, curiosities and trends that have caught the music industry’s attention. Some have come out of nowhere, others have taken months to catch on, and all of them could become ubiquitous in the blink of a TikTok clip. This week: As Ed Sheeran makes multiple radio plays, YoungBoy Never Broke Again and Yeat score viral hip-hop hits, and newcomer Maddy Zahm launches an emotional new trend. Ed Sheeran = Radio Ubiquity Although Equals (=), Ed Sheeran’s fourth solo album released last October, hasn’t risen to the level of chart-topping single success that 2017’s ÷ did (two No. 1s on the Billboard Hot 100 with “Shape Of You” and “Perfect”), the project’s past six months have stil...