Kasabian drank beer with fans on a beach until sunrise after their set at Poland's Open'er Festival.
The band - featuring Tom Meighan, Serge Pizzorno, Chris Edwards and Ian Matthews - headlined the final day of the festival on Saturday (04.07.15), and hit the beach with a selection of admirers later in the evening where they watched the sunrise.
A source told BANG Showbiz: "The guys were all on the beach drinking with fans until 6am in nearby Sopot, where their hotel was."
Earlier in the day, the Leicester lads thrilled the crowd with a 90-minute set featuring tracks 'Shoot the Runner', 'Eez-eh' and 'Club Foot'.
The rockers - photographed by M.Murawski / AlterArt - took to the stage with a rendition of the opening song from their latest album '48:13', 'Bumblebee' whipping the 80,000-strong audience into an excited frenzy with the track's crashing chorus.
However, the group - who last played at the festival five years ago - clearly weren't ready for the party to end when they finished their performance as they later invaded the stage during a set by fellow Brits, Disclosure, before heading off to their coastal hotel in Sopot where they enjoyed chilling out with admirers on the sandy shores.
Other acts to perform at the four-day festival included St. Vincent, Years & Years and Hozier.
The wild night came just a day after the group were honoured with the Royal Albert Hall Best Live Band accolade at the O2 Silver Clef Awards in London on Friday (03.07.15).
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