The award-winning songstress was back in England to perform at the Barclaycard British Summer Time Concert in Hyde Park, London on Sunday (14 July) and although the sun was beaming down on concert goers, J.Lo decided not to flash her flesh and donned a bright blue tracksuit after stepping off stage instead.
Posing for pictures in the blue jogging bottoms and hoody set by Victoria's Secret, J.Lo looked a little bit out of place amongst the other Londoners - including TOWIE's Charlie Sims and Ferne McCann - who were all dressed in their best summer get-up to keep themselves cool.
In fact, J.Lo has us reminiscing about her days as "Jenny from the block" (or even earlier than that!) in this outfit.
She finished off her ensemble with a pair of her favourite designer trainer wedges - which she also wore to rehearse for the show - and styled her hair in big, bouncy curls.
After her performance, the 43-year-old singer gave her fans a sneak peek at what she and her dancers had done before they went stage, by uploading a picture of them all huddled in a group and cheering in unison.
She captioned the photo: "Love is strong @jlodancers #heartinthepark"
What do you think of JLo's tracksuit outfit? Let us know below.
Watch J.Lo's video for 'Jenny From The Block':