The former England global left the Emirates after the expiry of his contract, opening up a free transfer to West Ham, with whom he's signed a three-year deal.
Wilshere will be looking to rebuild his career under Manuel Pellegrini following a frustrating few seasons at the Emirates Stadium.
Among Wilshere's first objectives at his new club will be to play his way back into the England squad, having missed out on the 23-man panel for the World Cup in Russian Federation this summer.
"It feels good, it feels special", Wilshere, whose father and brother are West Ham fans, said.
Queen absent from christening of Prince Louis
Buckingham Palace said this decision was taken by the Queen, William and Kate "some time ago" and is not due to health reasons. The christening of Prince Louis will take place inside The Chapel Royal, a location with strong ties to the royal family.
'At 26, he still has many years of football in front of him, and I believe he will be a great asset for us, ' he told the club's official website. He makes me think about Mbappe because I played him at 17 years of age because he was an exceptional talent.
Thai boys rescued from cave must wait to embrace family
Musk on Sunday tweeted that he was sending a "kid-size submarine" to the rescuers in the hopes that it would be "useful". The boys brought out of the dark, winding cave on Monday are "safe and conscious", said Chiang Rai province acting Gov.
West Ham finished 13th in their last campaign.
Wilshere has had injury problems in the past but was able to get plenty of game time for Arsenal last season.
There were talks of him going to Turkey but Wilshere has made a decision to stay in the Premier League and sign a three year contract.
Body of Renard Matthews is propped in front of TV for memorial
He held a PS4 controller in his hands while a game of NBA2K between the Celtics and Warriors was powered up on the screen. New Orleans' WDSU-TV identified the man as Renard Matthews , saying he died June 25 after being shot in the head.