Smiling in a toy train alongside her beaming young son, she could have been mistaken for any other parent enjoying a wholesome family weekend in the Swan Valley.

Yet, as some parents soon noticed, the woman who took the front seat of the children’s train at the Swan Valley’s Cuddly Animal Petting Farm was the same woman who had thousands of screaming fans cheering for her at Perth Arena just hours earlier.

Pink may have played four Perth shows since last Tuesday but the hugely popular US singer still had time to lap up a few of the city’s tourist hotspots with her family this week.

The singer, whose real name is Alecia Moore, was spotted treating her children Willow, seven, and Jameson, 18 months, to a trip to the farm on Sunday before heading off to a nearby winery.

Cuddly Animal Petting Farm manager Linda King said there was little indication of the special visitor, save from a phone call a couple of days earlier asking if there was room for a group of 28 people to visit on Sunday afternoon.

Pink enjoying some time out from performing at Cuddly Animal Petting Farm. Picture: Terena Graziano

“I asked if it was a party and she said ‘yeah, sort of’ and that was it,” Ms King said.

Ms King said the staff, two of whom had been to see her perform days earlier, were flabbergasted when Pink walked through the door.

“She was lovely and very approachable and with the kids. She let the staff have a photo all together with her,” she said.

Terena Graziano, who was visiting for a family member’s birthday party said a relative was ecstatic to spot a VIP in the usually sleepy surroundings of the farm.

“She just came over and said ‘oh my God, Pink is here. Like, legit, Pink the singer,” she said.

Pink with staff at Cuddly Animal Petting Farm. Picture: Linda King

“We looked over and everyone was crowding around her but giving her space.

“Everyone was running around like crazy people, pulling out their phones and taking photos.”

“It’s so far out of the city, it was the last place you’d expect her to come.”

Pink and her entourage were treated to a private tour of the zoo, including a pony ride and a bottle feeding session with the joeys, evidence of which was posted to her Instagram page later in the day.

It was her second visit to the farm, after visiting during her last Australian tour in 2013.

During her Perth visit she was also seen drinking beers at Little Creatures in Fremantle and enjoying time with her children at Mandoon Estate.

David Knuckey said fans were respectful of the singer as she toured the grounds with her entourage.

“She was lovely (and) was happy to say hello to my wife and her mates,” he said.

Tomorrow, she performs in Adelaide on the next leg of her Beautiful Trauma tour.

Pink and her son Jameson on the petting farm’s train. Picture: Terena Graziano