This is a possible summary:
The Sidemen react to some of their old videos, such as the helium challenge, the crossbar challenge, and the discard pack. They laugh at their past hairstyles, edits, and reactions. They also announce their second channel, where they will post behind the scenes and game videos. JJ provides some hype commentary throughout the video.
Here are the key facts extracted from the text:
1. The text is a transcript of a video titled "Sidemen React".
2. The video features seven members of the Sidemen group: KSI, Vikkstar123, W2S, Zerkaa, Miniminter, Tobjizzle and Behzinga.
3. The video shows them reacting to their old videos, such as face reveals, challenges, FIFA packs and rage moments.
4. The video also announces their second channel called More Sidemen, where they will post behind the scenes and game videos.
5. The video has a lot of jokes, laughter and banter among the Sidemen members.
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