Can AOA get any hotter?  Why, yes.  Yes, they can.

The girls released a group teaser image for their upcoming promotion of "Heart Attack," and they're looking fine in yellow-and-blue uniforms for the sports theme they're going with. Perfect for the summer season with a casual, laid-back theme as this, the girls will indeed get your heart racing to danger level.

SEE ALSO: Ailee reveals relationship with Choi Si Hoon from 'Single's Inferno', marriage plans in works

Stay tuned!