Ed Sheeran just made a major revelation during his testimony in the ongoing copyright lawsuit against him.During testimony Thursday, Sheeran revealed that he cannot read music. After sharing his occupation, marital status and dropping a few big industry names he's written for — Justin Bieber, BTS, The Weeknd, Taylor Swift and Elton John to name a few — Sheeran shared that he not only can't read music but also doesn't have a degree in the field.In discussing how his love for song began, the «Perfect» singer said he learned about music as a child from his church choir, noting that he first started songwriting at the age of 13 while on a trip to Ireland with his father.