Glee is performing “Toxic” on their 100th episode thanks to fans who were asked to pick 10 of the show’s 30 most revered performances to be remixed and featured on the series’ landmark episode.

The performance features Brittany (Heather Morris). Santana (Naya Rivera) and Quinn (Dianna Agron).

From the Hollywood Reporter:

Set to air March 18 and 25 at 8 p.m., the 100th episode will center on Jane Lynch’s principal Sue Sylvester, who after years of disdain for the New Directions and Matthew Morrison’s Will Schuester, finally succeeds in ending the glee club in Lima. Many original castmembers — Heather Morris (Brittany), Harry Shum Jr. (Mike), Mark Salling (Puck), Dancing With the Stars winner Amber Riley (Mercedes), Dianna Agron (Quinn) as well as Kristin Chenoweth (April) and Gwyneth Paltrow (Holly Holliday) — will return to say their final goodbyes to Will and each other in an episode that is said to be very moving.

The episode airs March 18 and 25 at 8 p.m.

Check out the “Toxic” cover that started the hoopla in the first place:

Click here to view the photo in high quality.