The Louis Majesty is the old Norwegian Majesty. It was a favorite of a lot of Cruisemates.
According to Louis Cruises website they suggest a suit for formal night and no mention of a tuxedo: If I was going I would go with the suit and leave the tux at home.
Originally Posted by Louis Cruises
Dress guidelines: Casual night - Country club casual clothing; we want you to feel comfortable and relaxed. Formal – Gentlemen we suggest suit & tie and the ladies cocktail dress or pant suit for nights of glamour!