Usher is rumoured to be working on new music with Lil Jon.

The 39-year-old singer and songwriter has collaborated with the rapper on his 2004 hit track 'Yeah', as well as 'Lovers and Friends', and the pair have set tongues wagging they are joining forces again as they shared an image of them both in the recording studio recently.

Earlier this week Lil Jon shared an image of him with Usher up bright and early in the studio.

He captioned the image, which was posted on his Instagram account: ''7AM N THE STUDIO! @usher @djkronic @skippybrand AND ME! WE UP TO SOMETHING (sic).''

Although the 'Turn Down For What' hitmaker has taken to social media to tease the new project, Usher has remained tight lipped and has not mentioned their encounter on his online platforms.

Lil Jon continued to upload a string of pictures to share with his fans his busy work schedule.

The posts read: '' DAY 4 N D LAB

''JD BROUGHT ME INTO THE MUSIC BUSINESS TO WORK FOR SO SO DEF IN 93. NOW ALL THESE YEARS LATER AFTER ALL THE THINGS WE BOTH HAVE DONE IN THE GAME WE R IN THE STUDIO TOGETHER WORKING ON SOMETHING SPECIAL (sic).''