Contrary to the comment before, "Creep", sung by Wagner Moura, does not represent an anachronism. The song does not play at the party itself. Instead, it was used in two scenes to match the feelings that Zero was experienced at the time. Any song composed until then (2011) could have been included in the soundtrack, as long as it did not play at the party.
The college party was in 1991 but Creep (from Radiohead) was released in 1993.