User blog comment:JayPlays1/Guess the Routine by the Keyword/@comment-10857070-20181003192059

Here's a lot of guesses.

4 is Night Boat To Cairo

9 is Call Me

14 is Just Dance

20 is Gold Dust

26 is Oh No!

29 is Macarena

31 is Maria

32 is Mi Mi Mi

40 is Mahna Mahna

45 is Oishii Oishii

47 is Never Gonna Give You Up