Celebrating her one year anniversary with actor David Harbour, Lily Allen shared a selection of throwback snaps of her Las Vegas wedding on Instagram.The 36 year old star posted a series of photos from the pair's Sin City nuptials, where she and her 46 year old Stranger Things partner were married by an Elvis Presley impersonator at the Graceland Wedding Chapel.The couple were joined by Lily’s children from her first marriage to Sam Cooper, nine year old Ethel and eight year old Marnie.