each artists' genre— pop, rock, soul—with "Led Zeppelin worship". Its sound evokes a "raucous quasi-Aerosmith screamfest". Billboard Jason Lipshutz felt the guitar riffs and lyrics seemed to be inspired by the Black Keys' album Let's Rock (2019). Lyrically, the single finds the trio "serenading a love interest" who leaves them insane. These lyrics are mixed with references to guns and sexual innuendo demonstrated by Stapleton in his verses: "Supernatural woman, supernatural freak/Don't know what you're doin,' got me feelin' weak/Oh, I wanna call you fever, baby, you can set a fire on me/Hot damn, pop it like a pistol, mama". He also begs his girl to "Pull my trigger, let me blow your mind", while Mars sensually asks "Baby, tell me, what's your fantasy?" and Sheeran cries for having a child "with his woman". Ben Boddez writing for The Georgia Straight felt the recording was another example of the bleeding of music genres, which started with several newcomers dominating the top of the charts. Boddez argued that rock and roll could make its way into the mainstream by artists like Sheeran making "marketable pop music". The lyrics infused with gun imagery left the artists' fans and critics displeased because of high-profile shooting incidents at the time. Critical reception "Blow" has received mixed reviews from music critics. Jason Lipshutz writing for Billboard enjoyed the track as the trio are "vocal pros and adapt to the sound capably", handling the style of the single. Malvika Padin from Clash believes the song "makes up for every failing becoming the perfect end to a long-winded journey." Ben Boddez of The Georgia Straight found Sheeran to have the least influence on the track, but not "out of place", with Mars's production and guitar solo and "powerhouse vocals" being the main focus and Stapleton being comfortable on the "heavier mix". Boddez named the song as "pretty fantastic". All Music's Stephen Thomas Erlewine commended Sheeran's collaborations choices, as it not only reaches new audiences, but also the choice of a "pop star as big as himself." Mike Nied of Idolator lauded the collaboration as it was "surprising" the singers reached a "common ground on a rock-infused anthem". The Tennessean Matthew Leimkuehler was pleased and surprised with the "headbangin" recording. In a mixed review, Lucy Shanker from Consequence of Sound praised Sheeran's change in sound matching Stapleton's style. Shanker affirmed the song worked due to Stapleton being "one