Photo: Jamie Squire/Getty Images When Drake first sued Universal Music Group for defamation over “Not Like Us,” some wondered if the move would keep Kendrick Lamar from performing the song at the Super Bowl. But Lamar still got the whole stadium yelling “A-minor” and even referenced the lawsuit during his set. Now, predictably, Drake is claiming the performance was defamatory. In an amended lawsuit, Drake’s lawyers said Lamar’s performance “was the first, and will hopefully be the last, Super