She may have been only lending a hand to help celebrate the new Sports Illustrated Swimsuit issue model, but last year's cover girl Irina Shayk ensured she also enjoyed her share of the spotlight.

The Russian beauty strutted through the streets of New York in a tight orange dress that showed off her stunning curves.

Irina, 26, posed outside The Late Show with David Letterman, where the Sports Illustrated models gathered to unveil Kate Upton as this year's cover star.

Model moment: Irina Shayk made an appearance at the  Late Show with David Letterman in New York yesterday in a very bright dress

Cristiano Ronaldo's girlfriend teamed her bright frock with maroon platform heels and a black fur coat.

She added jaw-dropping emerald earrings and a red cocktail ring to complete the colourful outfit.

Irina sizzled on the cover of last year's coveted swimsuit issue, but had handed over the crown to Miss Upton, whose cover was unveiled on an enormous billboard in Times Square.

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