Lady Gaga is finally launching her long-awaited beauty brand, Haus Laboratories – and it could prove a major win for Amazon on Prime Day – the annual shopping holiday that is exclusive to the e-commerce company’s Prime subscribers.On Tuesday, the American singer announced on social media that Haus Laboratories is preparing to launch, with pre-orders available, starting on July 15 – the first day of this year’s 48-hour Amazon sales event.Read more here: http://bit.ly/2LLNQKQFollow STYLE on:https://www.scmp.com/magazines/stylehttps://www.facebook.com/scmpstylehttps://www.instagram.com/scmp_stylehttps://www.twitter.com/scmp_stylehttps://www.youtube.com/c/SCMPStylehttps://www.dailymotion.com/scmp_style