What do you call a collaboration of public speakers?

I deliberated before writing this email but used the 5 second rule to skip into action.

Yesterday was very enjoyable, we had collaboration from Data Science Toastmasters, Meridian Speakers, Speakers of Croydon and Beckenham Speakers.  5 members stepped out of their fear to take on the challenge, some competing for the first time and we welcomed back a past member who gave the target speech.

Big congratulations to our winner Chloe, she now goes forward to the Area Contest on 6th March, you can support Chloe all the way to the finals!

Have you hear of the 5 second rule by Mel Robbins? Have you read the book?