Hair extensions!!

How can one get beautiful hair extensions like this? 

Picture:http://www.dailymail.co.uk/tvshowbiz/article-3250423/Naomi-Campbell-flashes-sideboob-model-pal-Heidi-Klum-dare-bare-wide-set-lace-gowns-Milan-s-amfAR-gala.html

http://www.dailymail.co.uk/tvshowbiz/article-3250729/Talk-gown-Braless-Ciara-smoulders-extravagant-grey-skirt-long-train-turns-heads-Milan-s-amfAR-gala.html