A South African man laid it all on the line by incorporating a flash mob and dozens of onlookers in an elaborate marriage proposal.

His girlfriend was shopping in a Johannesburg-area mall when the flash mob appeared, and immediately began performing an a cappella medley of love songs. Everyone stopped to watch the show, and after about a minute the man who planned it all descended down the escalator, dropped to one knee, and popped the big question.

Luckily she said yes, so the crowd cheered, and the mob's singing and dancing was able to continue.