The Writing’s on the Wall singer was forced to scrap dates and appearances and subsequently underwent surgery at the Massachusetts General Hospital Voice Center after suffering a vocal cord haemorrhage last May (15).
And last week (ends29May16), he returned to the city for a holiday with his parents and assistant under better terms.
According to People magazine, the British star kicked off the vacation on Wednesday (25May16) at iconic baseball venue Fenway Park, where they watched the Boston Red Sox claim victory over the Colorado Rockies.
The next day, the group spent the day walking the cobblestone streets of Beacon Hill, and grabbed beverages at a nearby Starbucks before heading to landmarks Quincy Market and Faneuil Hall for some shopping and lunch.
Sam and his family had a bite to eat at Mija Cantina & Tequila Bar in Faneuil Hall, and he was kind enough to snap a selfie with a fan called Will Heffernan, who told People the Oscar winner was kind during their quick meeting.
"He took the picture quickly and stealthily so no one else would bother him," Will tells the publication. "But he said 'Thank you' and 'I hope you enjoy your day.' He was very nice, but low key."
The staff at the restaurant also snagged a picture with Sam and posted their group shot on Instagram, with the simple caption, "It was a pleasure to meet you, Sam."
His multi-day visit had many locals predicted he would surprise the crowd at the Boston Calling Music Festival by reuniting with frequent collaborators Disclosure, but Sam had already left town by the time the electronic dance duo took the stage on Sunday night (30May16).