Breaking news from Ryan Seacrest. The radio DJ just called in to the station with the very special announcement that both Britney Spears and Justin Timberlake will appear on stage tomorrow night during Madonna's Dodger Stadium show. No word on what they'll be performing, or if, gasp, they'll be there at the same time, but talk about an exciting guest appearance! We went to see Madonna on Sunday night and she put on a spectacular show — can't wait to see the clips of when these two superstars join her on stage! Anyone going?