Justin Timberlake and Jay-Z appear to be going on tour together.

The 'Suit & Tie' collaborators have strengthened speculation they are planning a joint headline show, thanks to a cryptic posting on the '99 Problems' hitmaker's website.

The 'Empire State of Mind' rapper posted a photo of a stadium alongside the hashtag 'Legends of the Summer', prompting reports that will be the name of the tour.

Jay-Z - whose real name is Shawn Carter - then posted 12 photographs of stadiums in the US and Canada, including The Yankee Stadium in Bronx, New York, Rose Bowl in Pasadena, California and Rogers Center in Toronto, Canada, suggesting they will be the venues for the shows.

The news comes after it was confirmed the pair will take on headline slots at the UK's Wireless Festival, with Justin headlining on July 12 and his pal the following night.

Speaking of their joint plans together, Justin said recently: ''Absolutely, yeah we're definitely going on tour. We're still putting it together, but it's going to be a lot of fun.

''I don't know how much I should say [about special guests].''