Circular Breathing is the third Extended play by Australian singer-songwriter Kate Miller-Heidke.

It was her first to be released with a major music company, Sony BMG.

The EP was supported by The Apartment Tour throughout 2006.

[1][2] "Apartment" was the only single to be released from Circular Breathing in April 2006.

There was a promotional music video made for the song which featured her and some other band members performing the song live.