One of the biggest fans of the Gabon international confirming he is staying at the Emirates Stadium was team-mate Alexandre Lacazette.
Aubameyang will remain in north London until 2023 after penning a new three-year deal worth £250,000-per-week, making him one of the club's highest earners.
The 31-year-old proved his status as the club's most important player with 23 Premier League goals last season and netted a brace against Chelsea to clinch the FA Cup in August.
While Lacazette may see Aubameyang as competition for a place in Mikel Arteta's starting XI, the Frenchman could not hide his delight after the announcement was finally made official.
After joining the live chat on Instagram, Lacazette said: "Congratulations my brother! Finally after one month after the [gestures with sand timer]... you have the biggest ego in the world.
"But it's better now. Congrats bro, I'm really happy for you."
In an amusing exchange, Aubameyang asked why the pair weren't speaking in their native tongue before signing off with a French goodbye.
Gunners legend Ian Wright also backed Aubameyang's decision to stay, exclaiming: "My captain! I love you man!
"Can I just say because there's so many people who want to question you... for you to sign for us when we needed you most and when legends left, you are a legend. I love you captain, thank you!"
Wright then uploaded an animated video to his Twitter account which appeared to depict himself and Aubameyang hugging, summarising his emotional response.
During the announcement video on Instagram Live, several Arsenal players - including Willian, Joe Willock, Reiss Nelson and Lacazette - all posted in the comments section to show their approval of the deal.