ISLAMABAD   -  She marked the fifth anniversary of the death of her husband Rene Angelil earlier this month.But recently, Celine Dion was looking to the future as she celebrated the talents of her eldest son Rene-Charles.The superstar singer, 52, posted a link to new music recorded by the 20yearold and gushed about him her Instagram Story.’I’m so proud of my son,’ she wrote.’My love for him is so strong, and it touches me deeply that one of his passions is also one of mine.’She signed off with ‘Mom xx...’In addition to Rene-Charles, the French-Canadian hitmaker is also mom to 10-year-old twins Nelson and Eddy from her marriage to Angelil.Earlier this week, Dion marked Rene-Charles’ 20th birthday by sharing a photo of the two of them together in which she’s seen tenderly touching his bearded face.She reflected on how his birth had made her dreams of being a mother come true and how fast two decades have passed.In her post, she told her first born: ‘Go out there and embrace life, and remember to never stop believing in yourself, because I believe in you.’