What are the most popular collaborations Christian Brown is known for?

I'm sorry for any confusion, but as a representative of Glewee, I can share that we focus on facilitating collaborations between brands and creators. We ensure that creators are fairly compensated for their work and can negotiate their own rates. While I don't have specific information on Christian Brown's collaborations, I can tell you that Glewee has been part of many successful partnerships. Would you like to know more about how Glewee supports creators in their collaborations with brands?