High street sandwich chain Subway has launched its Summer of Music with Pepsi, featuring award-winning Grime artist Stormzy.

Subway and Pepsi Max have launched the Summer of Music campaign across both brands’ social media channels and in Subway stores. Aimed at millennials, the campaign will feature an exclusive online film featuring Stormzy, and an in-store competition to win over a thousand music tickets.

Grime fans were surprised by the artist in a Subway store, where he created the exclusive online content. Titled Pepsi Max and Subway present: The Ultimate Fan, for the film Stormzy fans were challenged to prove their fandom by getting the lyrics to their hero’s tracks right while rapping to a live audio-visual stream. The best then met Stormzy in a Subway store.

This summer consumers will also be able take part in an in-store competition, with a chance to win over a thousand music tickets including VIP weekend festival tickets and gig tickets.

Sacha Clark, marketing director for Subway UK and Ireland, said: “We’re hugely excited about the upcoming campaign. Working with Pepsi Max, we’ve created a campaign with a number of firsts for the brand, which we believe will target our key millennial audience and encourage them to come into SUBWAY stores and keep discovering everything that our menu has to offer.”

In July a new TV campaign was launched to support the Subway £3 Lunch.