Spoiler! Glee Season 4 Spoilers: Mercedes is Back — and Hanging With Rachel and Kurt! (PHOTOS) 2 of 4 Previous Autoplay Next Share Tweet October 27, 2012 at 12:00PM EDT by Beth Douglass Related: Glee, Spoilers, Rachel Berry, Kurt Hummel, Mercedes Jones, Season 4 Episode 5 full size Credit: Amber Riley on Twitter Kurt and Mercedes in Glee Season 4, Episode 5 Mercedes is back at McKinley for Season 4, Episodes 5 and 6, and Lea Michele has confirmed that both Kurt and Rachel will be joining her. “Ebony and Ivory! So glad to be back with my babies! @chriscolfer @msleamichele” Amber tweeted.