Pop superstar Ed Sheeran has used an unusual defense tactic in the London High Court as he denies claims he copied parts of his 2017 hitShape of You from another artist. Sheeran has been taken to court over accusations he stole his song’s “Oh I, oh I, oh I” hook from UK songwriter Sami Chokri’s 2015 single Oh Why. Despite being characterised as an “obsessive music squirrel” who consumed music “voraciously”, Sheeran says he hadn’t heard Chokri’s song before his song was written. He acknowledged Shape of You bore similarities to Oh Why, but he backed up his case by singing parts of Nina Simone’s Feeling Good and Blackstreet’s No Diggity to show how the melody is commonplace in pop music. “If you put them all in the same key, they’ll sound the same,” he explained. It isn’t every day a court gets a free Ed Sheeran concert…