The Krewe of Proteus Mardi Gras parade roles down Napoleon Aveune in New Orleans, Monday, Feb. 16, 2015. The day is known as Lundi Gras, the day before Mardi Gras. (AP Photo/Gerald Herbert)

Mardi Gras in New Orleans: glitzy balls, then the parades

Revelers danced into the wee hours Tuesday at glitzy balls, kicking off the annual Mardi Gras bash that spills costumed merrymakers into the streets of New Orleans for partying, parades and trinkets tossed from passing floats.