The England international was signed from Manchester United for £16m at the end of the transfer window, and after a mixed start at the Emirates, he silenced the doubters with the first treble of his professional career.
The internet was suitably impressed with "Dat Guy" Welbeck, and he was hailed as everything from a king to Superman by fans on social media as a mixture of old and new memes got an airing.
HATRICK WELBECK pic.twitter.com/U96wHBPJ7j— GeniusFootball (@GeniusFootball) October 1, 2014
Goals this season: Welbeck - 3. Falcao - 0. pic.twitter.com/0kAEVU9xW2— Nikobarcenal (@Nikomarvel) October 1, 2014
Welbeck 😂😂😂 pic.twitter.com/e1HBdNAJyo— Football Stuff (@FootbalIStuff) October 1, 2014
WELBZ HAS FULLY BEEN THAT GUY TONIGHT 😎 pic.twitter.com/71bVvvctwQ— (@Dtaylorparry) October 1, 2014
Thanks for ysday . Lord welbz pic.twitter.com/c6WXyAVY5p— Gènesis (@Mister_TAFO) October 2, 2014
Who’s Welbz? pic.twitter.com/LSA9lD9q1O— Theo (@WeIbeckinho) October 1, 2014
Of course, while it was all great viewing for Arsenal fans, there must have been a few Manchester United fans wondering if their club had made a mistake in letting their youth product join a rival.
BREAKING: Manchester United fans watching Danny Welbeck right now. pic.twitter.com/GMbSKQdDH5— BBC Sporf (@BBCSporf) October 1, 2014
Welbeck will look to keep the good vibes flowing when Arsenal take on Chelsea at Stamford Bridge on Sunday.