'"[2] Matthew Perpetua wrote for Pitchfork Media that "The track has her lashing out against acquaintances who she claims bullied her and dissed her early music, but now show an interest in her since she has attained some degree of success.

"[3] Eric Henderson explained for Slant magazine that "Who's Laughing Now serves up a catty riposte to old schoolyard mates emerging from the woodwork, wanting to tag old photos of them together on Facebook.

Perpetua went to say that "Who's Laughing Now" seems to be pitched as a motivational song, but it's so narcissistic and myopic that it's hard to imagine anyone connecting with the singer's petty grudges and desperate need for constant affirmation.

"[3] Lewis Corner wrote positively for Digital Spy that "Flanked by pounding hip-hop kick-beats and twinkling piano pinches, Ms. Cornish rightfully addresses all those hanger-ons with diva ad-libbing perfection.

"[9] Adam Markovitz wrote for Entertainment Weekly that "Jessie's outside-the-box persona gets buried under maximalist production and mainstream themes like bullying on Who's Laughing Now.

"[10] On the week of 14 August 2011, the song entered the UK Singles Chart at number 37, just after the music video release, making it Jessie's fourth top forty hit.