Katy Perry caught hugging John Mayer

Singer Katy Perry has fuelled rumours that she and he beau John Mayer are rekindling their romance.

The "Roar" singer was photographed getting cosy with the 37-year-old singer at the Grateful Dead concert here on Saturday, reports aceshowbiz.com.

As seen in a photograph of the couple taken at the concert and obtained by TMZ, Perry wrapped her arms around Mayer from behind as they enjoyed a performance by the rock band. In another image, Perry was caught leaning in to tell Mayer something.

Perry sported a pair of ripped blue jeans and a tie-dye spaghetti trapped shirt for the outing. She finished her look with a pair of sunglasses and a white handbag. As for Mayer, he donned dark jeans and a stonewashed denim shirt over a white T-shirt. He accessorised the casual outfit with dark-rimmed glasses, a silver beaded necklace and a blue bandana on his head.

Perry, who divorced from Russell Brand back in 2012, started dating Mayer following the divorce. Although Perry and Mayer allegedly split earlier this year, the pair were spotted in late April spending time together at Disneyland in Anaheim, California.