The Fox series' 10th episode entitled 'Trio' welcomes back Demi and in a way, kicks out Rachel.

"They kicked me out," Lea Michelle's Rachel Berry told Adam Lambert's 'Starchild' in the Glee Episode 5 Season 10 'Trio' promo advert. The surprise comes after Rachel's understudy, Santana, said "Two men enter. One man leaves."

Will (Matthew Morrison) and Emma (Jayma Mays) are giving child creation their best shot after failing to do so in various repeated attempts. The McKinley guidance counselor confirms their desire to bear a child saying, "Will and I are trying to conceive a child," to which Sue Sylvester responds to with "God, why?!"

And lastly, Dani is back and in blue hair. The X Factor judge is seen taking the stage in the 'Trio' promo advert. With the US version of X Factor reportedly cancelled, fans might just see more of the bright blue-haired singer on the show.

According to Gleek Out Brasil, the 10th episode will feature the following songs:

The Happening by the Supremes performed by Kurt, Dani and Elliott

Danny's Song by Loggins and Messina performed by Will & Emma

Jumpin' Jumpin' by Destiny's Child performed by Tina, Sam and Blaine

Barracuda by Heart performed by Rachel and Elliott

Gloria by Laura Branigan performed by Rachel, Elliott and Santana

Hold On by Wilson Phillips performed by Tina, Artie, Blaine, Sam, Rachel, Santana, Kurt, Dani & Elliott

Don't You (Forget About Me) by Simple Minds performed by Tina, Sam and Blaine

Lea Michelle and Adam Lambert were initially rumored to perform Mariah Carey's Vision of Love but Lambert's publicist was quick to dismiss rumors. Instead, the two are singing Barracuda by Heart as mentioned above and will allegedly be joined in by Santana, notes MJ's Big Blog.

Watch the show's tenth episode, Trio's short trailer in the video below.