Jennifer Lopez and Robin Thicke have been seen together in a recording studio.

Rumours of a blockbuster collaboration between the pair ignited when Lopez's sister Lynda tweeted a photo of the two singers.

She said: "Uh oh...walked into the studio to find this: @JLo @robinthicke ...can't be nothing but trouble... :)."

Jennifer Lopez then retweeted the message, suggesting that she may have recorded a duet with Thicke.

'Blurred Lines' man meanwhile is due to perform at the iTunes Festival in London on September 24.

He follows acts such as Lady Gaga and Avicii, who have both played the event this month.