Lady Gaga has been spotted shopping for wedding dresses in Canada with her mother Cynthia, prompting speculation that she could be set to tie the knot with long-time boyfriend Taylor Kinney.

The pop star browsed for gowns in Toronto on Sunday, a day she described as the "greatest shopping experience of all time". The "Applause" singer has been dating the "Chicago Fire' actor for three years now.

Lady Gaga was taking a break from her ArtPop tour, after her last tour in Ottawa at the town's Bluesfest. The songstress is rarely seen out and about with her mother, but on this occasion she seemed to be very involved in her daughter's shopping trip. They were seen perusing the interior of a fancy looking store in the Canadian city, with the two of them pointing at various items.

"I just had the greatest shopping experience of all time," Gaga wrote on Twitter later that day, "IT WAS LIKE CARDIO AND DRUGS BUT BETTER MAYBE NOT HEALTHY BUT THE VINTAGE WAS."

Despite her enthusiasm on social media, she did not reveal the real purpose of the shopping trip. 3N reports that the singer has been dating Kinney since 2011, and she got smitten when the actor stole an unscripted kiss from her during the production of her music video for "You and I".

The 32-year old actor currently stars in the NBC series "Chicago Fire' in which he plays Lieutenant Severide.

While the pair has not been secretive about their relationship, but they have refrained from being spotted together too often.