Kate Prince is a remarkable British dance pioneer whose renowned ZooNation company has transformed the profile of hip-hop and street dance across the country. Alan Yentob meets the choreographer as she embarks on her latest project, Message in a Bottle, a West End production set to the songs of Sting. The programme follows the highs and lows of birthing a complex new dance show from day one in the studio to opening night, while also exploring the wider impact of Prince's work and politics on a younger generation of upcoming dancers