Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Travis headlined at the World's Big Sleep Out event in Trafalgar Square. ...

Dame Louise Casey addresses the gathered crowd at the World's Big Sleep Out...

Dame Louise Casey addresses the gathered crowd at the World's Big Sleep Out...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

Rag'n'Bone Man performs at the World's Big Sleep Out event in Trafalgar Squ...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

David Le'aupepe of Gang of Youths performs at the World's Big Sleep Out eve...

People get ready to spend the night outside as part of the World's Big Slee...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...

Jake Bugg performs at the World's Big Sleep Out event in Trafalgar Square. ...