Elizabeth Hurley has announced yet another essential cause near and dear to her heart that she is working on shedding light on.ALSO: HELLO! launches Jubilee T-shirt collection to celebrate Queen Elizabeth in styleThe star invited fans to learn about Smile Train, a charity she has just become Global Ambassador of, which works to help cleft-affected children, and providing them with "access to lifesaving surgery and other comprehensive cleft care."The star is known to be a major philanthropist and activist when it comes to important health issues, particularly breast cancer, which she has donated to find a cure for for several decades.WATCH: Elizabeth shows off her best moves in a chic dressMORE: Elizabeth Hurley stuns in strapless lace mini dress – fans reactIn a new video filming from a luscious garden, the actress candidly spoke to followers about how she first learned of the need to support charities such as Smile Train.She began by revealing a heartbreaking statistic, saying that: "Did you know that every three minutes a baby somewhere in the world is born and is unable to breathe, sleep or eat properly?"Elizabeth then admitted: "I didn't know either, but I've been approached by Smile Train, and they told me this is because these babies are born with clefts."The heartfelt announcementExplaining their heartfelt purpose, she said: "Their mission is to change the world one smile at a time."MORE: Exclusive: Elizabeth Hurley makes confession about body confidence during important night outMORE: Elizabeth Hurley makes heartfelt revelation about son Damian - exclusiveShe described her new role as: "An honour and a privilege," and insisted to viewers that she would be reporting back to all on "the progress that this wonderful