User blog comment:PewDieFern/Guess The Song Deluxe Edition! (With Pictograms,Avatars, and Dancer's clothing!)/@comment-25225577-20150327032327

The unsolved JD3 ones are:

7. Boom

8. Hungarian Dance No. 5

9. Tightrope

10. She's Got Me Dancing

11. Soul Searchin

12. Pump It

13. Barbra Streisand (the redone pictos!)

14. Only Girl

15. Gonna Make You Sweat