Help! What should i do?

For Gymnastics we have to pick a song for our floor routine, so we were choosing one time from this long list of songs and i was like "Hahah someone should do a song from Lord of the Rings, it would be so intense! " and one of the instructors thought i said "Hahah i want to do a song from Lord of the Rings" so she spent HOURS going through every song on every album ( she had the extended edition of each as well) but i didnt know she was, so i got another song (DK! :D) and then at the next practice she was like "Dont worry, ill find one!" and i had no idea what she was talking about so i was just like "Okay! :)" Then, yesterday, she was like "i found a good song from lord of the rings!' and shes wants me to do it, but i really dont want to, because i dont like the song but she spent a week finding it but everyone else on the teams like "Do DK" and i want to but i would feel really bad! What song should i use?