English National Opera are due to reveal their latest project aimed at inspiring the next generation of opera-lovers later.
They have recruited ex-Blur frontman Damon Albarn to try to appeal to a younger audience.
More top news
Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
The family of Oliver Dearlove urged people to "think again" before using their fists, as the man who killed him began a six-year jail term.
London Fire Brigade took Southwark Council to court on four charges in relation to safety breaches at Lakanal House in Camberwell.