Meet Aengus Mac Grianna.  He's an Irish news anchor who is pretty notorious for his screw-ups and bloopers.  His latest one, however, might be his best.  He obviously thought he had plenty of time remaining in the clip that was playing before he came back to give the news.  Unfortunately, he did not.  

The first video below shows his shocked face when someone in his ear obviously tells him he's ON THE AIR, while he is still applying makeup and fixing his tie. 

The second video shows the compilation that the internet has put together of some of Aengus' best (worst) moments.