Meghan Trainor experienced a "really dark place" and her "heaviest" point in her life, after giving birth to Riley last year.
"I was, like, over 200 pounds when I C-sectioned him out," the Made You Look singer, 28, told ET Canada on Monday.
"I just wasn’t feeling great. I’ve never had stitches, so to have this C-section scar, I was in a really dark place and I wanted to be in a great place for my son."
Trainor disclosed that she entirely changed her diet and training routine and shed more than 60 pounds.
She noted, "I worked every day and challenged myself. I was like, ‘If I can survive a C-section, I can do anything.'"
Trainor, who has a baby with her husband Daryl Sabara, claimed that after making her lifestyle modifications, she started feeling "better than ever."
"I was very dedicated and I started seeing the pounds come off like one week at a time," the Lips Are Movin chart-topper said, citing her faith level was at "a good eight or nine."