Did You Celebrate Janet Jackson Appreciation Day? Super Bowl Sunday was also another holiday. It was Janet Jackson Appreciation Day. The holiday was created by people on social media to celebrate Janet Jackson after the 2004 “Wardrobe Malfunction” during the Super Bowl halftime show almost ruined her career. People have long complained that Justin Timberlake never got any grief for participating in the shocking moment. What’s the thing you appreciate about Janet Jackson the most?