Will and Grace have reunited and fans on Twitter are having a meltdown.

Actress Debra Messing, who played Grace on the sitcom, shared a picture online of herself with her co-stars Eric McCormack (Will), Megan Mullally (Karen) and Sean Hayes (Jack).

She also posted one on Instagram of herself and Eric wrapped in a hug.

The sweet reunion has triggered plenty of nostalgia for the adored show, which aired from 1998 to 2006.

And it has got some fans wishing for more Will & Grace – or even a movie.