10 stellar flash mob marriage proposals

Because the urge to break out in spontaneous song appears to be growing. Just last week, not one -- but two Southern California flash mob proposals gained national attention with their coordinated choreographed proclamations of everlasting love.

While Bostonians may remember the famed Prudential Center flash mob wedding in Dec. 2010 (see video), we're waiting with bated breath for our own Hub-based spur of the moment musical proposal extravaganza.

Until then, click through for our top 10 favorite flash mob proposals.