Check it out ... the Spanish-Mexican star is strutting her stuff for the L'Oreal show in the city of lights when she trips and falls to her knees in the middle of the runway.

The singer -- who you may know for her appearance in the Disney Channel Original Movie "The Cheetah Girls 2" -- is then rescued by Brazilian singer Anitta. You can see Anitta rushing to help Belinda on her feet before finishing her own catwalk ... not missing a single beat in the process.

Belinda is already laughing off the stumble, however. She took to Instagram in the aftermath of the fall, splicing together a video of her trip with Sarah Jessica Parker's infamous fall in one episode of "Sex and the City."

Her caption, written in Spanish, says ... "The most iconic moment in my life, even though it was not how I imagined it would be."

Belinda took to Instagram again, this time to thank Anitta for her kindness on the runway ... sharing another unfortunate clip of her fall.

She added ... "It doesn't matter how many times you fall, what matters is how you get up."

Belinda was one of many big names to participate in the L'Oreal show, which was themed "Walk Your Worth" and took place outside the Place de l'Opéra in Paris Monday.

Alongside Belinda, A-listers like Eva Longoria, Kendall Jenner, Camila Cabello, Jane Fonda, Cara Delevingne, Heidi Klum, Viola Davis, Andie MacDowell, Simone Ashley, Aja Naomi King, and Pia Wurtzbach all walked in the high-profile show.