West Ham came from two goals down to defeat Everton 3-2 away from home at Goodison Park in the Premier League.
Goals from Romelu Lukaku and Aaron Lennon saw 10-man Toffees go 2-0 up after 56 minutes.
The Hammers then staged a stunning comeback, and scored thrice through Michael Antonio, Diafro Sakho and Dimitri Payet late on.
Former West Ham duo Collison and Etherington were following the match, and they were delighted with the final result.
The win means that West Ham are now fifth in the Premier League table with 49 points from 29 matches.
Slaven Bilic’s side are just a point behind Manchester City, who are currently fourth in the standings and have a game in hand.
A top-four finish in the Premier League this season is certainly within reach of the Hammers.