Rochelle Wiseman explained the concept of the single, "It's a really amazing, catchy song but the sentiment behind it is being all excited and counting down the days to seeing someone when you’ve really been missing that person.

Newsroom gave the song 4 out of 5 stars and wrote "30 Days is sure to fill the dance floor with its echoing beats.

The chorus makes you want to throw your arms up and there's a brilliant drum fill after each verse which one music journalist said sounds like "A potato being thrown in a bin".

The vocals are shared evenly between the girls and sound moody, although they've been edited a bit too much and some emotion and personality has gone.

[5] Robert Copsey of Digital Spy rated the single 4 out of 5 stars, writing a positive review about its "blend of plinky synths", "rumbling electro beats" and "addictive chorus" which is "cooler than a blast of Listerine.

The Saturdays also had a chat with Stefanie Faleo on Chart Show TV to talk about 30 Days.

Una showcases her baby bump and Rochelle her engagement ring as ways to fend off some of the men they do not approve of.