Swiss nightclub where 47 people died advertised flaming champaign bottles in eerie promo video before deadly blaze

The Swiss nightclub where 47 died in an inferno early New Year’s Days showed off videos of bottle service waitresses carrying flaming champagne bottles before the blaze.

Witnesses said it was one of those bottles — with a sparkler attached — that caught the ceiling of the basement “Le Constellation” bar on fire.

In a promo video, women in tight dresses, wearing bizarre neon helmets, can be seen carrying the blazing champagne bottles to tables at “Le Constellation” bar in the upscale Swiss resort of Crans-Montana.

The young waitresses are seen carrying the bottles above their heads, with sparks almost brushing against the low ceilings of the nightclub.

Forty-seven people have been confirmed dead, and 115 injured after the fire triggered a “flashover” — a devastating phenomenon when all the combustible material in a room ignites.

Many of the casualties were also reportedly caught in a stampede as the fire caused a panicked rush for the one staircase leading out of the basement bar, according to witnesses.

The bar in the ritzy Apline resort, which is popular with international visitors, reportedly has a capacity of up to 300 people.

Multiple foreign tourists are among the dead.