Who was the new cast member?
On Teen Mom 2 Season 10 Episode 21, Kailyn was the one who announced the newest addition to the cast.
However, it became apparent that not everyone was happy to have a new person to share the screen with.
Meanwhile, Jace's dad, Andrew, made an appearance at the reunion for the first time since Teen Mom 2 Season 1.
What did he have to say about Jenelle and David?
Elsewhere, Cole and Aubree joined Chelsea on the stage.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.