“Weird Al” Yankovic’s Mandatory World Tour will tear the roof off the Palace Theater in Columbus on July 6. I got a chance to talk to the man behind “Eat It,” “White and Nerdy,” and tons of other songs that have impacted my twisted sense of humor since high school. And here’s the strangest thing: Over the phone, Al Yankovic sounds like Jeff Goldblum. Don’t believe me: listen in.