The 610 Stompers step out at their annual fundraiser, the Sweet 610 Debutante Ball, with food, drinks, entertainment and costume contests (1980s superhero attire encouraged). Benefits the Youth Empowerment project. 8 p.m., Mardi Gras World, 1380 Port of New Orleans Place; $60 at the door.


Learn about the latest in nutrition and equipment Friday and Saturday at the Ernest N. Morial Convention Center, at a free health and fitness expo kicking off the Rock ‘n’ Roll Marathon. The marathon, half-marathon, and relay start at 7 a.m. Sunday at Poydras and Camp streets and finish at Roosevelt Mall in City Park.


You’ve earned it: King cakes, both traditional and not-so-much, will be available for sampling at the second annual King Cake Festival in Champions Square outside the Superdome. Music, tastings and a vote for the best pastry are the proverbial icing on the cake. It all benefits babies and children at Ochsner. 11 a.m.-6 p.m.