Emirates, the largest international airline, is advertising 4,000 cabin-crew jobs via online music provider Spotify Ltd as it strives to attract international staff for the world\'s biggest fleet of Airbus superjumbos. Emirates needs to boost flight attendant numbers by a third to 16,000 during the year through March as it adds five double-deck, 517-seat A380s, for a total of 20. Ads on Facebook may follow as the Dubai-based company seeks English-speaking, tech-savvy recruits aged from 21 to 30. Emirates aims to leverage its status as long-haul market leader to become employer of choice among would-be cabin crew, akin to Apple Inc in computing and Nike Inc in sporting goods, advertising manager Sardar Khan said. \"We\'ve growing rapidly and that presents a massive hiring challenge,\" Khan said. \"Apple and Nike are aspirational brands and we like to think of ourselves as in that league. Your friends are going to think, wow, you\'re working for them?\"