"Slowly" is a song by Ann-Margret that was used in Kate's flashback at the beginning of "I Do," when she was in the hotel. Its use in the show is notable as being one of two instances where commercial (non-original) music was used in a non-diegetic way, meaning as part of the score and not heard by the characters. (The other instance being "I Shall Not Walk Alone".) "Slowly" is the second track on Ann-Margret's album On the Way Up.