Kevin Barber from Consequence of Sound wrote, "“Like It’s Her Birthday” is a little off-color from what the album is trying to accomplish. It does not shy away from the dance-y, mall-pop type of music that they were trying to avoid, but it is a catchy single that lets the public know that Good Charlotte is back," adding, "It will be a guilty pleasure that some will try to ignore, but most will succumb to." Ian Drew from US Magazine considerate it a "downright danceable fun". Jon Dolan from Rolling Stone said: "Like It's Her Birthday" sets a man's problem ("She said she only had a meeting/But she is dressed for something/Something that is no good") to a bubblegum groove that a 14-year-old could throw a fist to." Eric Sundermann from Spin gave it a positive review, saying: "The track blends a combination of old and new Good Charlotte: It's a fast paced party song, but rather than "The Anthem"-style distorted electric guitars, the group uses synthesizers to create the upbeat sound."
