Article continues below advertisementMeghan Trainor flaunted her shocking weight loss at a recent red carpet appearance.The singer, 33, debuted her lean physique at the 2025 Baby2Baby Gala in Los Angeles, Calif., on Saturday, November 8.Trainor donned a strapless Alin Le Kal white gown with studded details and a tulle underskirt. She paired the glamorous look with satin gloves, a diamond necklace and a Cinderella-like updo.Article continues below advertisementSource: MEGAMeghan Trainor shocked fans with her weight loss.