Travis Lytle’s review published on Letterboxd:
Funny but almost instantly forgotten, "Popstar: Never Stop Never Stopping" sends up the contemporary state of pop music with the story of a once and future boy band and its front man. Focusing both on the music and the characters behind the musical enterprises at play, the film is a foul-mouthed and energized piece of comedy.
Revolving around Andy Samberg's Conner4real, "Popstar: Never Stop Never Stopping" finds the musician searching for ways to keep his career afloat after a musical misstep of a record release. The film follows as he attempts to resurrect The Style Boyz, his old boy band, or find other methods by which he can keep himself relevant.
Looking and feeling like a Lonely Island music video stretched to feature length, the film mostly works. Akiva Schaffer, Jorma Taccone, and Samberg put together a mirthful and musically infused ride whose narrative thinness still allows for boldly vulgar and usually successful comedy set-pieces.
Lightweight and, at least, mildly enjoyable, "Popstar: Never Stop Never Stopping" is effectively entertaining. There may not be any real heft to the outing, but the film's music and personality supply an enjoyable fizz.