Kevin Mazur/WireImage for Clear Channel

WHAT SHE WORE The actress pitched in at The Concert For Sandy Relief in a red leather Isabel Marant minidress, jeweled bangle and woven Christian Louboutin booties.

WHY WE LOVE IT If the countless performers didn't convince you to pick up the phone, Blake Lively's legs would!

CELEBRITY: Blake Lively

TREND: Leather

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Blake Lively

Blake Lively flaunted her gams in Isabel Marant

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