Gwyneth, 41, plays recurring character Holly Holiday. The special milestone episode will also include appearances by other guest stars, including Kristin Chenoweth and Chace Crawford.
The song Paltrow will be performing has been a huge hit on the Billboard Hot 100 chart, solidly resting at the top for the past three weeks. It also received an Oscar nomination in early March.
The positive words include, “Clap along if you feel like happiness is the truth” with the words “Cause I’m happy” repeating throughout the song.
No need to wait for the 100th episode of “Glee!” to air to hear Paltrow’s version of “Happy” - a recording of Gwyneth singing the cheerful song has already been released. Now you get to decide who sings it better - Pharrell Williams or Gwyneth Paltrow?