She got back to the Slytherin common room later that day ready to pass out and realised they had thrown her a party there too. Malfoy had concocted another cocktail which was not Sex on The Beach surprisingly, but had opted to mix the best Pina Colada she had ever tasted. He shrugged and grinned and just said "potions master’ when she asked him where he was getting his new mixology skills from. After much dancing, more charmed birds and late night confabulation, Hermione was able to remember the tune right for another of her Muggle favourites. 