Isaac Lamb and 60 of his closest friends and family (plus a marching band) gave his girlfriend the surprise of a lifetime when they put her in the back of a slow-moving hatchback and performed an elaborately choreographed lip-dub of Bruno Mars's "Marry You." Lamb makes a dramatic appearance at the end of the routine, at which point he, naturally, gets on one knee. The lucky lady, and the Internet at large, said "yes."

[via Devour]