Julia Roberts took a rather heartfelt trip down memory lane over the weekend as she remembered her late mother, Betty Lou Bredemus.MORE: Julia Roberts surprises fans with rare selfie of her 'twin'In honor of her mom's birthday on 13 August, she posted a photograph of hers on Instagram, captioning it: "Thinking of my sweet Mama on her birthday today."VIDEO: Julia Roberts pens sweet tribute to her 'magical' niece Emma RobertsWhile the only comments she got were floods of heart emojis, the photograph quickly amassed over 60,000 likes in show of support.Betty died at the age of 80 on 19 February 2015 following a tragic battle with lung cancer.MORE: Julia Roberts and Danny Moder's twins look so different in sweet family photosJulia was incredibly close to her mother who she credited for teaching her how to be a great parent to her own three children with husband Danny Moder, 17-year-old twins Hazel and Phinnaeus, and Henry, 15.In an interview with People magazine, she said: "My mom worked a full-time job and raised three girls pretty much on her own. My brother [Eric Roberts] is older, so he was gone and out of the house.