Simon Cowell has been spotted displaying his four stone weight loss as he stepped out in Malibu over the weekend.The 61 year old, who recently pouted his lips for a selfie with pal Robbie Williams, enjoyed the sunny California weather with his family as they went shopping at Cross Creek for Mother's Day.The Britain's Got Talent judge kept it casual as he donned a simple bright pink T-shirt, which he paired with white shorts, brown socks and a pair of black trainers.