Before she was a judge on The Four and touting self-care on her forthcoming third studio album, Treat Myself, Meghan Trainor was "All About That Bass."

In 2014, the then-20-year-old soulful singer from Nantucket, Massachusetts released her body positivity-celebrating debut single. At the time, the young performer probably didn't know that "All About That Bass" would become a radio smash, hitting No. 1 on the Billboard Hot 100 and, in 2016, earning her a Grammy Award for Best New Artist.

Since breaking onto the airwaves, the star known for her sassy brand of bubblegum pop has become a staple in the music industry, with songs like "No" and "Me Too" from her second studio album, 2016's Thank You, hitting the Top 20. Trainor's also branched into television, making her mark as a judge on Fox's The Four: Battle for Stardom, which premiered in early 2018.

Trainor's third studio album, Treat Myself, was initially scheduled for release on August 31. Unfortunately, the album has since been delayed, with no clear release date. Don't worry though, Trainor's doing just fine: she's currently busy planning her wedding to actor Daryl Sabara, to whom she became engaged in late 2017.

Below, check out 20 photos of Meghan Trainor throughout the years.

Meghan Trainor: Then and Now