Trainor wrote the song with Jacob Kasher Hindlin, Jason Derulo, Peter Svensson, and its producer, Ricky Reed.

An electro and R&B song with a minimalistic musical bed of a synth bassline, finger snaps, and popping mouth sounds, "Me Too"'s lyrics concern self-love, as Trainor asserts confidence in her looks.

Music critics found the lyrics of "Me Too" difficult to relate to and Trainor's confidence disingenuous, but some of them praised the track's production.

In the United States, the song peaked at number 13 on the Billboard Hot 100 and was certified 3× Platinum by the Recording Industry Association of America.

Hannah Lux Davis directed the music video for "Me Too", depicting Trainor partying in a car and traveling through Los Angeles before joining her backup dancers to film a dance sequence.

Shortly after its release, the video was removed after she noticed it had been digitally altered to make her waist look smaller; it was reuploaded the following day.

Trainor fell while performing the song on The Tonight Show Starring Jimmy Fallon, drawing accusations of staging a marketing stunt.

A fan of the music project Wallpaper, Meghan Trainor began co-writing songs with its frontman, producer Ricky Reed, and his frequent collaborator Jacob Kasher Hindlin, for her second major-label studio album, Thank You (2016).

L.A. Reid, the chairman of her label Epic Records, encouraged her to write "a song that every other artist wished they had" because she lacked a proper lead single for the project.

[3][9] The song's verses are set to a minimalistic musical bed consisting of a bassline, finger snaps, and popping mouth sounds, followed by an R&B pre-chorus.

[21] She pronounces the word "wanna" like "vahna", which PopMatters's Chris Conaton thought sounded like a "faux-Eastern European accent".

[22] Jada Yuan of Billboard believed it delicately shifted Trainor's retro image to a more urban R&B style, and she called it "Beyoncé Lite" due to its audacious theme.

Alexa Camp of Slant Magazine called the song a "vacant exercise in positivity" and accused it of "confusing delusional self-importance with self-worth".

[26] News.com.au writer Cameron Adams called it one of 2016's worst songs due to its galling lyrics and blamed it for Trainor's commercial decline.

[20] Erin Jensen of USA Today lauded Trainor's boldness and thought the song's titular lyric would be a good life motto for its audiences.

[61] A few hours after its release, Twitter users began pointing out that it had been digitally altered to make Trainor's waist look smaller.

[62] When she encountered screenshots from the video on social media, she thought the alterations were made by fans before realizing they were present in the official upload too.

"[59] Trainor had asked the editors to conceal her mustache and remove her mole hair, but thought reducing her waist size crossed a line.

[65] Writing for Vox, Caroline Framke speculated the incident was a calculated move to make Trainor appear more sympathetic to audiences ahead of her album being released to streaming services.

I mean, not only does body positivity fall in line with Trainor's mantra, having her pull a finished product and condemn it to video hell makes her look like a complete badass.

On May 12, 2016, she performed the song in a green and black sequin dress and high heels on The Tonight Show Starring Jimmy Fallon.

Trainor stayed there in shock for a minute, after which Fallon laid down beside her and joked: "of every single dance move, grabbing the mic is the toughest".

'"[9][71] Trainor began retweeting videos of it soon after it aired, which led The Atlantic's Spencer Kornhaber to speculate that it might be a marketing stunt to generate PR for the release of Thank You.

[84][85] Trainor performed "Me Too" on November 22, 2018, while wearing a sparkling jersey and blue trousers, at a Dallas Cowboys and Washington Redskins game which launched The Salvation Army's 128th annual Red Kettle Campaign.