There will be some violence between friends on the upcoming midseason premiere of Glee season 5.

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The episode, which is titled Frenemies, features Santana (Naya Rivera) becoming Rachel's (Lea Michele) understudy for her role on Broadway in Funny Girl. This will lead to some tension in Rachel and Santana's relationship to the point of physical violence.

The new trailer for the midseason premiere episode features Rachel and Santana at their apartment in a vicious argument.

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"You are awful and that is never gonna change," Santana tells Rachel. Rachel then retaliates by dramatically slapping Santana in the face.

Additionally, there is a scene in the trailer that features Rachel and Santana singing Every Breath You Take by The Police, with Rachel looking very intently at Santana as she sings "I'll be watching."

Rachel and Santana will also be singing the song Brave by Sara Bareilles in the episode, according to song-list spoilers. Santana will be singing the only solo performance of the episode when she performs Don't Rain on My Parade from Funny Girl.

Also in New York, Kurt (Chris Colfer) and Elliott (Adam Lambert) will be singing a duet of I Believe In a Thing Called Love by The Darkness.

Back in Lima, Ohio, Artie (Kevin McHale) and Tina (Jenna Ushkowitz) will be getting a few duets to sing as well. They will sing Whenever I Call You Friend by Kenny Loggins and Stevie Nicks, My Lovin' (You're Never Gonna Get It) by En Vogue and Breakaway by Kelly Clarkson, where Blaine (Darren Criss) will join them.

Glee season 5 premieres Tuesday, Feb. 25 at 8 p.m. on Fox.

Watch the trailer for the next episode of Glee season 5 here:

Tags: Glee television fox