Olivia Newton-John's grieving husband pays touching tribute at gala

It's now been more than five months since Olivia Newton-John passed away at the age of 73 after being diagnosed with cancer three times. And on Saturday night, John Easterling called his late wife 'the most courageous and compassionate woman' he had ever met during an emotional tribute to the singer, actress and singer and activist at the 20th anniversary G'Day USA Arts Gala in Los Angeles, according to The Mirror. The event, which was also attended by Newton-John's daughter Chloe Lattanzi, included a musical tribute featuring a medley of the Grease and Xanadu star's biggest hits, performed by Aussie musician Delta Goodrem, according to Variety.