The Hangout will take place at 5pm on Friday, May 31st in front of a live audience of fans and students from The BRIT School.
As well as a global audience watching online, John will also be joined at the Hangout by fans who have the opportunity to attend the event through various competitions.
Pupils from the BRIT School will have a unique opportunity to seek advice from the Grammy Award-winning star.
The Hangout, which will be broadcast live from London, comes as John returns to the UK to perform at the Chime For Change 'Sound of Change' concert in Twickenham Stadium on June 1st.
John Legend releases his brand new single 'Who Do We Think We Are' featuring Rick Ross on June 16th.
The track is the first to be released from John's new album 'Love In The Future', out September 2nd.
The Hangout is a new British online pop culture show that will broadcast exclusively on Google+ - now the worlds second largest social media network - featuring pop news, interviews and musical performances.