[7] It was written by band members Michael Clifford and Ashton Irwin along with Jake Sinclair, who also produced the song, with additional production by Eric Valentine.

Lewis Corner of Digital Spy gave the song a mixed review, stating that: "While their influences clearly nod towards pop-punk godfathers Green Day and Blink-182, 5SOS's official debut 'She Looks So Perfect' is strewn with teen heartthrob clichés.

"We worked too damn hard for this just to give it up now," Luke tells his flame over a plucky electric guitar, before the song bursts into a lofty chorus and further promises of diamond rings and plane tickets.

It's the age-old tale of a forbidden romantic runaway; trouble is, with this anthem poised to scale the chart, slipping away unnoticed will soon prove slightly more difficult.

[11] Rachael McArthur of Renowned for Sound gave a mixed review stating, "The vocals are very polished and boy-bandy and delivered with great enthusiasm."

[13] An extended play was released on 21 March 2014, containing five tracks: "She Looks So Perfect", "Heartache on the Big Screen", "The Only Reason", "What I Like About You", and "Disconnected".

[15] On 1 March 2014, "She Looks So Perfect" debuted at number three on the Australian ARIA Singles Chart, being kept off the top spot by Clean Bandit's "Rather Be" and Pharrell Williams' "Happy".

[20] It was the fourth UK number one single by a band from Australia and the first since Madison Avenue's "Don't Call Me Baby", topped the chart in May 2000.