As if the World's Largest Block Party wasn't large enough...

Organizers of the 28th annual outdoor festival in the West Loop announced Thursday that Ben Folds Five would headline the Friday night concert at this year's festival. Past performers have included Barenaked Ladies, "American Idol" alumKris Allen, Cobra Starship, Spoon and others. Saturday's performer will be announced soon. 

The two-night, two-block party is allegedly one of the top spots for Chicago singles, as Oprah has claimed it has produced more than 70 marriages after couples met there and later married. Attendance reaches about 20,000 each year, the organizers said. 

If you go:

When: June 29-30
Where: Madison Street and Des Plaines Avenue  
Cost: $40-$45 per night, $75 two-night pass; includes four free beverages (beer, wine, soda or bottled water)