Add Bcc In Magento Email Model

Add Bcc In Magento Email Model

i would like to add the bcc using below magento model.
i have tried to add addBcc('') with below model.
But does not work.
$mail = Mage::getModel('core/email')
->setToName($senderName)
->setToEmail($customerEmail)
->setBody($processedTemplate)
->setSubject('Subject')
->setFromEmail($senderEmail)
->setFromName($senderName)
->setType('html')
->send();
Any Help Much Appreciation! Thanks