POP fans couldn't believe their eyes as a huge music star was spotted pumping iron in a budget gym in a Manchester suburb. Ahead of his arena show in the city on Thursday, Justin Timberlake , 43, decided to hit PureGym in Ancoats for a workout. Why is Justin Timberlake using the PureGym in Ancoats pic.

twitter.com/3UQBhovzVt One eagle-eyed fan took a sneaky snap of the unassuming A-list star on the lateral pull down machine. Sharing the image on social media platform X, a fan wrote: "Why is Justin Timberlake using the PureGym in Ancoats.

" Another wrote: "Justin Timberlake being in the Puregym Ancoats has sent me." It sparked a string of puns inspired by the pop star's music catalogue. One joked: "Some lateral pull downs, to get a sexy back, perhaps.

" Referencing his group NSYNC's smash hit Bye Bye Bye, another said: "He’s working on his bi-bi-biceps." While a third concerned fan said: "Hope he doesn’t hurt himself. That’ll ruin the tour.

" Justin wore a cap, navy hoody and red shorts for his gym visit. His distinctive calf tattoo could be seen on his left leg. Day passes at the gym cost £9.

99, while a month pass can be picked up for £19.99. Justin's Forget Tomorrow tour has proved to be a hot ticket in the UK - a stark difference to a run of dates in the US that saw some venues struggling to sell.

In April, the 43-year-old kicked off his first tour in five years but was forced to dramatically slash prices to shift tickets. To make matters worse, the first single, Selfis.