Mariah Carey Tickets

Mariah Carey has compared giving birth to her cutie pie twins Morrocan and Monroe to the forces of altitude.

Then 42-year-old diva continued her globe trotting to Austria, where she performed at the ski resort of Ishgl at the top of the Mountain for a concert to bring in the end of the season.

Taking to Twitter, the singer made the odd comparison: "Singing at this altitude is almost like giving birth to twins, which I did last year on this day.. lol! Happy birthday dembabies!!(sic)"

The star didn't let the nippy weather affect her style, keeping it fabulous in red and black striped trousers, gloves and a cropped jacket, although she did suffer a bad case of the dreaded camel-toe.

While in Paris, Mariah and husband Nick Cannon celebrated their fourth wedding anniversary and renewed their vows in front of the Eiffel Tower.

Mariah Carey and Nick Cannon's 4th wedding anniversary: their union in pictures...