What is the fine-grained topic of the following text: The “Best Day of My Life” music video, featuring the combined talents of Jennifer Hudson, Steve Aoki, Pixie Lott, Luan Santana, Yemi Alade and Tan WeiWei, was premiered last night in Rio De Janeiro, Brazil. Only return the topic.
Premiere of the "Best Day of My Life" music video in Rio De Janeiro, Brazil