Music

The New Directions - featuring Marley (Melissa Benoist) and Blaine (Darren Criss) sing Marley's orginal song, "All Or Nothing," for  one of their Regionals performances in Glee's Season 4 finale— Episode 22: "All Or Nothing."

American Idol runner up Jessica Sanchez comes to Glee for the Season 4 finale — Episode 22: "All Or Nothing." She's playing Frida Romero, the lead singer of the New Direction's main competition at Regionals. Get your first listen to the episode by hearing Jessica sing "Wings," a song by British girl group Little Mix.

In Glee's Season 4 finale— Episode 22: "All Or Nothing," the New Direction girls perform Icona Pop's hit, "I Love It"... which just so happens to also be the theme song for MTV's Snooki & JWOWW.

Artie (Kevin McHale) sings "For Once In My Life" in Glee's Stevie Wonder tribute, Season 4, Episode 21: "Wonder-ful,"