After Jenna bumps her head, she imagines an alternate universe in which she is Rachel Berry -- perfect posture, '60s dresses, engagement ring and all.
In the swapped "Glee" universe, Mike ...
In the swapped "Glee" universe, Mike Chang rocks Joe's dreadlocks, Joe dresses bright and bold like Mike, Rory has blonde hair and a McKinley High jacket as Sam and Rachel scowls and slouches in Tina's goth gear.
The best switch of all, Will Schueste...
The best switch of all, Will Schuester takes Sue Sylvester's place. Is he also pregnant in the "Props/Nationals" episode? We hope so.
Arch enemies (but secretly friends) W...
Arch enemies (but secretly friends) Will and Sue switch places, with Sue finally trying out the Jheri curl she's mocked for three seasons.
Mohawks and scowls do not suit Darren...
Mohawks and scowls do not suit Darren Criss. Here we see Blaine switching places with Puck. Oh, the implications that has for Kurt.
We never thought we would see Puck in...
We never thought we would see Puck in a bowtie, let alone a sweater vest and perfectly-gelled 'do! He pulls off the preppy look after switching places with Blaine.
Mike Chang switches places with Chris...
Mike Chang switches places with Christian hippie Joe, wearing his relaxed sweaters and long dreads in the new episode.
Step-brothers Kurt and Finn couldn't ...
Step-brothers Kurt and Finn couldn't be more different, but the pair successfully swaps next week, with actor Cory Monteith styling his flannel-wearing costar's hair before filming. A weird consequence of this switch: Finn is now dating Puck. Um...
Sugar Motta and Quinn swap places, an...
Sugar Motta and Quinn swap places, and the over-excited New Direction is here in Quinn's perfect blonde bob, next to Joe-as-Mike.
Artie becomes a sassy ponytailed chee...
Artie becomes a sassy ponytailed cheerleader and Santana a nerd in a wheelchair when the two swap places. Meanwhile, Quinn takes the role of giggly, enthusiastic Sugar Motta.