Article continues below advertisementMeghan Trainor is no longer all about that bass.The pop star, 31, flaunted her shocking weight transformation at the premiere of The Paper in Hollywood, Calif., on Wednesday, August 27.Trainor stunned in a plunging black bodysuit, paired with a bedazzled bow belt and tiny white shorts.Article continues below advertisementSource: MEGAMeghan Trainor went braless on the blue carpet.The musician - who debuted her new body and b----- augmentation earlier this year - teased her hair in a high bun with money pieces hanging out in front.