The director will film Pharrell's performance on June 3
Singer responded to arrests on Facebook saying it's 'beyond sad'
The singer will play London and Manchester as part of a wider European tour
Williams says that the Gnarls Barkley man's version 'burns' his own
Producer and singer is working on a project titled 'Inspiration'
The promo features a cameo from Kelly Osbourne
The singer began crying during a montage of fan-made videos for hit single 'Happy'
Muse, Solange, QOTSA, Chvrches among artists who perform at the US festival
The singer and producer will replace Cee Lo Green on the TV talent show as a coach
The station's flagship annual music event will take place on May 24 and 25