Here is a concise summary of the provided transcript:
**Setting:** A gathering at Chelsea's house to watch Grace's YouTube channel, "Grace's World", reach 1 million subscribers on "The Not So Late Show".
**Key Events:**
1. **Unexpected Party**: Chelsea's initial plan to invite one friend each with her sisters backfires, and many guests arrive.
2. **Live TV Countdown**: The group watches as Grace's channel nears 1 million subscribers on live TV.
3. **Interview and Countdown**: Grace is interviewed on the show, discussing her channel, while the subscriber count ticks up.
4. **Dramatic Finish**: The channel reaches 1 million subscribers, with a few brief losses and regains, ultimately stabilizing above the milestone.
5. **Grace's Thank You**: She expresses gratitude to her subscribers, celebrating the achievement.
Here are the key facts extracted from the text, each with a number and in short sentence form, excluding opinions:
**People and Relationships**
1. The main characters are Barbie, Chelsea, Isabelle, Annabelle, and Grace.
2. Chelsea is Auntie to Isabelle and Annabelle.
3. Grace is a babysitter, as mentioned by the children.
4. Mrs. Carson, Katie, Ruby, Molly, Doctor, and Boss are also present at a gathering.
**Events and Occasions**
5. The event is a celebration for Grace reaching one million subscribers on YouTube.
6. The celebration is held at Chelsea's house.
7. Grace is also scheduled to appear on "The Not So Late Show" for a countdown to one million subscribers.
**YouTube Channel and Countdown**
8. Grace's YouTube channel is called "Grace's World".
9. The channel is about to reach one million subscribers.
10. A live countdown to one million subscribers is featured on "The Not So Late Show".
11. The countdown reaches its goal, confirming Grace has one million subscribers.
12. The subscriber count continues to increase after reaching one million.
**Miscellaneous**
13. Tommy is mentioned as a baby, with a possible connection to the family watching the countdown.
14. Ben 10 is mentioned as a favorite of a character in Grace's YouTube videos.