In a must-win game for Luton Town, the Hatters took a surprise lead at West Ham thanks to Albert Sambi Lokonga.
The player was given the freedom of the London Stadium as he strolled into the area and threw himself at the cross to open the scoring.
Marking from the home side was non-existent, and the crowd was silenced as the ball hit the back of the net.
Pictures from Canal+ and NBC Sports Soccer