1. Everyone showed up to celebrate.
Thousands of people swarmed the Washington Convention Center.
3. The decorations committee went all out.
4. Attendees grooved to musical acts.
Alicia Keys was there.
Brad Paisley performed too.
8. There were snacks.
9. And glitzy dresses.
10. Photo op!
11. The best part: the prom king and queen.
- Britain marks 10 years since 52 people were killed in terrorist attacks in London.
- European leaders are holding an emergency summit today to discuss Greece's debt crisis.
- The deadline for a deal on Iran's nuclear program was extended again, to the end of the week.
- Bill Cosby testified in 2005 that he obtained sedatives to give to women he wanted to have sex with, the AP reports.