Thousands of flights across the U.S. were delayed Monday, as severe thunderstorms in the South, Plains and Mississippi Valley disrupted traveling Americans during the Memorial Day weekend. As of 4:30 p.m. EDT on Monday, there were over 4,300 flight delays and more than 125 cancellations in and out of U.S. airports, according to FlightAware.

Rick Derringer, whose six-decade career spanned teen stardom as lead singer of the ‘60s smash “Hang on Sloopy,” a ‘70s solo hit with “Rock and Roll Hootchie Koo,” session work with artists from Steely Dan to Barbra Streisand, and extensive work as a writer and producer of wrestling themes like Hulk Hogan’s seemingly ageless “Real …