"This is for Brussels tonight. I want you all to sing it with me, so they can hear us," she told the crowd, before beginning a solemn cover of Bob Dylan's "Make You Feel My Love".

Rather than singing along with Adele, the crowd offered its light by way of cellphones. Everyone remained respectfully silent, allowing Adele's voice to carry its message. Once she sang the final note, they burst into applause and cheers, their solidarity with Brussels becoming clear in that last moment.