Context Hub Events

Hello, I want to call a function when the 'Targeting / Start Targeting / Safari (Audiences)' button/link is clicked. I have tried listening for the 'EVENT_TEASER_LOADED' event, but it is not working. Can someone tell me which event I need to listen for?"

window.ContextHub.eventing.on(window.ContextHub.Constants.EVENT_TEASER_LOADED, function () {

//

}