The speaker lineup for the inaugural SXSW London event, scheduled to take place from June 1st to June 6th in Shoreditch, East London, has been substantially broadened with a diverse array of prominent figures. Newly confirmed participants include Mel B, the iconic former Spice Girl and longtime judge on "America's Got Talent," along with multi-instrumentalist Jacob Collier, television host Padma Lakshmi, and actress Natalie Dormer, widely recognized for her role in "Game of Thrones