Prince has been blessing audiences abroad with his lavender magic. Earlier this month, we got to see the royal Minneapolitan rip through 1996’s “Chaos and Disorder.” Now, thanks to February 23’s two-and-a-half-hour set at Manchester Academy, we get to witness a furious minute of “Let’s Go Crazy.” Well, sort of. It’s only the final moments of that 1984 hit from Purple Rain, but it’s priceless — that shreddage, the blues outro, the part where he drops to the floor like a bird just flew at his face, and the weird messages that scroll up the screen toward the end. Who does this guy think he is? Oh, right, he’s Prince. Catch him on New Girl too.