First image from The Flash/Arrow crossover reveals Legends of Tomorrow

Last year's seasons of Arrow and The Flash featured the very first crossover between the two kick-ass heroes, and it proved to be quite the popular team-up. As such, it's no surprise that plans are in place to have them join forces again, and this time they won't be alone.

The current seasons of Arrow and The Flash have been setting up a third superhero TV show - Legends of Tomorrow - that's set to expand the shared universe next year. Before it premieres, the heroes will be making an appearance in the next Arrow and The Flash crossover, and executive producer Marc Guggenheim tweeted the first image from the mega superhero team-up.

Check it out below...

The photo features Green Arrow (Stephen Amell), The Flash (Grant Gustin, sporting robot hands?), Speedy (Willa Holland), Black Canary (Katie Cassidy) and John Diggle (David Ramsey), plus newcomers Hawkgirl (Ciara Renee) and Hawkman (Falk Hentschel).

The shared universe has been pretty successful thus far for Arrow andThe Flash, but there's already a concern that the storytelling on said shows has suffered due to the need to smoothly set up this latest spin-off. Nonetheless, here's hoping that this team-up will make for a great starting point for Legends of Tomorrow.

Season 2 of The Flash airs Tuesday nights on Sky 1 in the UK and on the CW in the US. Season 4 of Arrow airs on Wednesday nights on Sky 1 in the UK and on the CW in the US. Legends of Tomorrow begins in 2016. Check out the first trailer for Legends of Tomorrow below...