In the Glee episode "Theatricality", Rachel and Shelby sing a duet of the Lady Gaga song "Poker Face".
In the episode, Rachel and Shelby perform a duet of the Lady Gaga song "Poker Face" in front of the Glee Club. The performance is meant to show the two of them bonding and connecting, and it is successful in doing so. The performance is well-received by the Glee Club and the audience, and it is a memorable moment in the episode.