Justin Bieber presents Hailey Baldwin as "wife" during a visit to the museum

Justin Bieber had a whim when he took Hailey Baldwin to a Canadian museum to see a decided exhibition, well, himself.

The singer "Sorry" sung Sunday at the Stratford Perth Museum in Stratford, Ont., Where employees claimed that he had called Baldwin a big word: wife!

"Justin very kindly introduced Hailey as his wife," wrote the museum's organizers on the official installation page, pushing back commentators wondering if the two stars were really related. "Maybe just a term of tenderness? We loved their visit.

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The Bieber exhibition, inaugurated in February, titled "Steps to Stardom" contains articles from all the meteoric rise of the 24-year-old, including shoes, stage outfit, an old hockey coat and even a letter signed by First Lady Michelle Obama.

Baldwin left a little bit of love for her husband at the museum, adding her name to a wall of fan signatures by writing "I still want you – Hailey B."

After a private vacation in Europe after their N.Y.C. On September 13, Bieber and Baldwin, 21, traveled to Canada in the Ontario province of the singer last week to visit relatives.

Local Caitlin Lee met the "extremely kind and courteous" couple after the newlyweds bought frozen drinks in Kitchener, Ontario.

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"They were really very flirty," Lee told People. "Hailey was not wearing a ring finger ring, but I would not want to live in downtown Kitchener without bodyguards – not with a rock as big as his!"

"We congratulated Justin for buying the new house." He laughed and said, "Thank you," Lee added.

Justin Bieber and Hailey Baldwin with fans in Canada.

Courtesy of Caitlin Lee and Erin Kitchen

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Both were seen with loose hooded sweatshirts and matching green sweatpants. A cool-faced Baldwin stood next to a Bieber off smiling as he wrapped his arms around his wife Lee and his colleague Erin Kitchen for a photo.

After proposing the model on July 7, Bieber and Baldwin had a brief commitment before secretly knotting the knot in the New York courthouse last month.

"Since they've started dating together, Justin is committed to 100%," said a source at PEOPLE. "They are young and loving and feel confident in their relationship."