Kanye West announced his girlfriend Kim Kardashian is pregnant during a concert in front of a crowd of more than 5,000 at the Ovation Hall at Atlantic City's Revel Resort.
In a video posted online by normalmag.com, the rapper stops the music and asks the crowd to congratulate his "baby momma".
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
Windy this weekend with gales across northwestern parts of the UK. Rain spreading southeast.
Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."