The Hammers went 2-0 behind at Carrow Road, as Republic of Ireland internationals Robbie Brady and Wes Hoolahan scored for the relegation-threatened Canaries.
It looked like West Ham would lose on the road again, just as they did against Southampton last weekend, but Slaven Bilic's men roared back with two goals in three second half minutes.
Dimitri Payet pulled one back, before teeing up Mark Noble to hammer home an equaliser - and whilst West Ham pushed for a winner, it finished 2-2.
After the game, former West Ham star Trevor Sinclair took to Twitter, calling the comeback 'outstanding', before raving about Victor Moses' impact.
Moses, currently on a season-long loan deal from Chelsea, came on as a 62nd minute substitute for Alex Song, and created Payet's goal by racing clear of the Norwich defence and shrugging off Timm Klose, before firing a shot which John Ruddy could only parry out to the onrushing Payet.
Sinclair called Moses' performance 'game-changing', with the Nigerian international staking a claim for a regular first-team spot after a vital cameo role against Norwich.
What did you think of Victor Moses' performance against Norwich City?