The hormones released that causes stage fright (performance anxiety) are adrenaline (epinephrine), noradrenaline (norepinephrine), and cortisol. When you are confronted with a performance situation and you have stage fright, then you set-off the fight or flight response, where the amygdala is activated. The amygdala in turn activates the locus coeruleus, which then activates the sympathetic nervous system, when then activates the adrenal medulla to release adrenaline and noradrenaline into the bloodstream. The amygdala also activates the HPA axis (hypothalamic-pituitary-adrenal axis), in which the amygdala activates the hypothalamus, which then secretes CRF (corticotropin releasing factor), which then travels to the pituitary to release ACTH (adrenocorticotropic hormone) which then travels to the adrenal cortex to release cortisol. These three stress hormones, adrenaline, noradrenaline, and cortisol, are released when you are exposed to a performance situation when you have stage fright.