This week The Masked Singer introduced Group C, the last remaining new performers for season 3, and by the end of the show, many fans already knew who was hiding behind the dinosaur mask. Who is T-Rex and what clues confirm her identity?

T-Rex had drawn many guesses starting from the time her costume was introduced. All those went out the window though, the minute that she took to the stage with boundless enthusiasm. The first thing fans noticed was that T-Rex was clearly a young performer who was full of energy as she danced around the stage. Fans also noticed that T-Rex was quite tall as she stood not much shorter than the host Nick Cannon. She sang "So What" by Pink and immediately fans took to social media with their guesses.

Related: The Masked Singer Group B Finalist: Banana's Identity Predictions and Clues

By the time the performance was done most agreed that it was YouTube sensation, JoJo Siwa, who was behind the mask. If they weren't convinced by the performance alone then the clue package definitely helped confirm their suspicions. The clue package for T-Rex started out with sitting on a baby doll to tell the story of her journey, implying she began very young. This would be accurate for Siwa who is still by most standards very young. Next a compass with the directions "N" and "W" circled. Fans of the YouTuber, as well as fans of Keeping up with the Kardashians, know that she appeared on the show with Kim Kardashian's daughter North West who she appears close to. She talked next about being discovered while showing a dinosaur dripping in pink. Pink is one of JoJo's signature colors this made sense. She was also discovered when she appeared on Abby's Ultimate Dance Competition.

She went on to say she was plucked out of obscurity to a magical place full of creatures pirouetting the land all similar in looks strength and skill. This was a clear reference to her appearance on the dance competition show leading to a two-year stint on the popular reality show Dance Moms. Next viewers were shown a gold "U" which pointed to her success as a YouTuber which followed the show. T-Rex even showed off some of her dance moves before she sang. At 5'9" she fits the height guesses for T-Rex as well. More than any of the clues though was just that her fans felt her overall personality showed through in the performance. The voice was also fairly recognizable to anyone who has watched her YouTube channel.

While her performance was a lot of fun, it was clear that she was not a trained singer. This led many to believe that she would be the first member of group C eliminated. However, this dinosaur escaped extinction for at least another week as it was Bear, who turned out to be former Governor Sarah Palin, who went home. Whether you're young enough to be a fan of JoJo Siwa or old enough to have been reminded it of by her performance, there is no denying T-Rex was entertaining. Luckily we will get to see at least one more performance from her next week.

Next: The Masked Singer Group C Identity Predictions and Clues

The Masked Singer airs Wednesdays at 8pm EST on Fox.