VICTORIA and David Beckham's American adventure has officially begun - the British supercouple boarded a plane bound for their new home in Los Angeles on Thursday (12Jul07). The Spice Girls star and her soccer hunk partner were expected at Los Angeles International Airport as WENN went to press. The Beckhams and their three sons, Brooklyn, Cruz and Romeo, boarded a plane at Heathrow Airport just outside London on Thursday afternoon. The family is moving to California to support former England soccer captain David as he embarks on a new career with the Los Angeles Galaxy. He will be officially welcomed as the club's new star at a press conference in Los Angeles on Friday (13Jul07). But before his first scheduled Galaxy game - against touring English Premiership team Chelsea on 21 Jul (07) - David will be checking out his new Beverly Hills mansion. Victoria snapped up the $22 million (GBP11 million) estate, which is five minutes away from the couple's pals Tom Cruise and Katie Holmes, earlier this year (07), but busy Becks is yet to set foot in the place. The family's arrival could not have come at a better time for Victoria, whose new reality TV show, Victoria Beckham: Coming To America, debuts on Monday (16Jul07).