Mark and Nish characterise Rosalind as always doing 'cool stuff'
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Mark and Nish formed a band called The Diverse Stripes and performed a song called 'I'm Always Seeing You (Do Cool Stuff)', which featured a lot of complimentary facts about Rosalind.
(Written by Taskmaster Wiki contributors)