Adele was rolling in the deep of the Bad Bunny crowd ... and loving every second. The singer was living it up Saturday night at Benito's sold-out show at Tottenham Hotspur Stadium in London alongside fiancé Rich Paul -- and videos show Adele putting her performing hiatus momentarily on pause and going nuts singing along to his music. Watch the clip ... Adele is all smiles as she danced in an England soccer jersey ... singing along, throwing her hands in the air, and even swiping a fan's hat.