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This singer is one tough performer ... whether she's acting, singing or dancing. While heading into a Hollywood studio, this bootylicious babe sports bruises on her sculpted legs. Ouch!

Even though she kept her face hidden by an umbrella, that body of hers is an eyeful in itself. Can you guess the bruised beauty who is wearing these killer heels? Here's a hint: her rapper husband discovered Rihanna.

Find out who this is ... after the jump.