Billie Eilish enjoys late-night dip in Barcelona 

Pop sensation Billie Eilish, 23, was spotted enjoying a late-night beach outing in Barcelona over the weekend, taking a refreshing dip in the sea with a group of friends.

The singer, clad in a flattering red bikini, appeared carefree and relaxed as she splashed around, enjoying some downtime between her European tour stops for Hit Me Hard and Soft.

Her Barcelona performances wrapped up recently, with upcoming shows scheduled in Glasgow, London, and Manchester next month.

The beachside escape comes just days after Billie made headlines by confirming her romance with actor and musician Nat Wolff, 30.

The couple was seen sharing a passionate kiss and toasting with champagne during a romantic getaway in Venice.

Their relationship had long been rumored, but this marks the first public display confirming the pairing.

An insider described the relationship as "a long time coming." Despite earlier claims suggesting Billie was "more interested in women" at the time, it seems the duo's chemistry has since evolved into something more.

Nat, however, did not join her on the beach outing, as Billie opted to unwind with close pals instead.