Everything the young striker touched turned to goals last season and it was no different when he stepped out for the first time in the senior Three Lions' shirt against Lithuania at Wembley in March.
Harry lived every schoolboy's dream by scoring after just 79 seconds.
In doing so, he became the eighth Spurs player to score on his England debut but not the fastest! That honour stays with our double-winning manager Bill Nicholson, who took just 19 seconds to score on his debut and his one and only cap against Portugal at Goodison Park back in May, 1951.
Harry's was the third-quickest goal for England by a debutant after Bill and John Cock (30 seconds, 1920).
As he prepares for Euro 2016 qualifiers against San Marino later today (Saturday, September 5, 5pm) - where he scored a hat-trick for England Under-21s in 2013 - and Switzerland at Wembley on Tuesday (7.45pm), Harry looked back at his dream debut with the FA.
You can watch the FA's video special below...