Southampton were superb tonight in a performance that had St Mary's absolutely bouncing at full-time.
This Saints team are more than doing justice to the 50th anniversary celebrations since they last won the FA Cup, and have now booked their place at Wembley for the semi-finals.
Tonda Eckert deserves plenty of praise for the job he has done with this group in what has to be the biggest night and achievement of his short coaching career so far.
They made Arsenal pay and were incredibly sharp in attack, the likes of Tom Fellows, Leo Scienza and Finn Azaz had brilliant games, causing the Arsenal defence all kinds of problems from early on.
The pace of their wide players seemed to catch the Arsenal defence out as they sprung forward, threatening on the counter-attack numerous times.
Even when the visitors managed to find an equaliser in the second half, they stayed calm and rallied again before finding a late winner.
When the full-time whistle blew the home fans descended into scenes of song and dance, embracing and jumping for joy to mark what will be remembered as a famous night for the club.