The 13th guy on this episode was revealed at the end of the show.
ORDER:
1. Reed: "Moves Like Jagger" by Maroon 5 featuring Christina Aguilera (a more soulful version w/ a drum & cymbal solo)(2011)
2. Adam: "Think" by Aretha Franklin (1968)
3. Deandre: "Reasons" by Earth, Wind & Fire (1974)
4. Colton (on piano): "Decode" by Paramore (2010)
5. Jeremy: "Gravity" by Sara Bareilles (2009)
6. Aaron: "Never Can Say Goodbye" by Jackson 5 (1971)
7. Chase: "Storm Warning" by Hunter Hayes (2011)
8. Creighton: "True Colors" by Cyndi Lauper (1986)
9. Phillip: "In the Air Tonight" by Phil Collins (1979)
10. Eben: "Set Fire to the Rain" by Adele (2011)
11. Heejun: "Angels" by Robbie Williams (1997; later re-done by Jessica Simpson in '05)
12. Joshua: "You Pulled Me Through" by Jennifer Hudson (2009)
13. JERMAINE: "Dance With My Father" by Luther Vandross (2003)