If you want to win ringside tickets to Britney's show Friday night in Des Moines, Iowa, make sure you're following @britneyspears and @kiss107fm for the details on how to win tickets tomorrow.

Update, Friday noon PST: Here are the clues from today's If U Seek Britney.

On Friday at 7am CST by @KISS107fm:
At this circus; there are fun things to see and do....don't forget to bring a friend because we have tickets for TWO - KISS Pass to @britneyspears

On Friday at 8am CST by @britneyspears:
Look close to the center of the city and you'll find a card, the size of your drivers license so you better look hard. - BRIT Pass to @KISS107FM

On Friday at 9am CST by @KISS107fm:
When Britney's in town there is no doubt, she won't play basketball or tennis here when she's out -- KISS Pass to @britneyspears

On Friday at 10am CST by @britneyspears:  
Hopefully you have "EAGLE" eyes; because you'll have to look high and low for this surprise - BRIT Pass to @KISS107FM

On Friday at 11am CST by @KISS107fm:
Don't be scared, he won't hurt you....this circus animal is a statue. -- KISS Pass to @britneyspears

On Friday at noon CST by @britneyspears: 
The circus will be fun, we're not lion...remember you're looking for a little card.....we know where we'd be tryin. - BRIT Pass to @KISS107FM

On Friday at 1pm CST by @KISS107fm:
If you haven't found it by now, it's in the city that starts with the letter "U"! Try the park and find the card that will get you RING SIDE SEATS, guaranteed to have Britney see you!

On Friday at 2pm CST by @KISS107fm:
Try the park and find the card that will get you RING SIDE SEATS, guaranteed 2 have Britney see you!

On Friday at 3pm CST by @KISS107fm:
Cngrts 2 Madison Knoepfler who found our ringside seats in Lions Park in Urbandale. Thanks for following & Playing!

Really glad you guys liked Brit's cover of You Oughta Know. Made her really happy to hear how much her fans loved it! -Adam, manager

Have you ever wondered what goes into making Britney's Circus tour so spectacular? Here are some mind-blowing stats about the scope of the Circus:

THE CIRCUS STARRING BRITNEY SPEARS - BY THE NUMBERS

35          Number of trucks used to transport stage and tour materials
225        Number of touring crew members
150        Number of additional local crew members hired in each city
300,000 Weight (in pounds) of the production
9            # of hydraulic elevator shafts located on the stage to get the performers up and down
4,000     Number of road cases used for the stage, lights, sound equipment, wardrobe, and backline equipment
1200       Meals prepared & served to the touring crew and local staff per day
360°        view the LED video screens provide the audience of the stage
240         # of moving lights on stage
10,000    amps of power generated by the tour in one show
30           # in millions of $$ it costs to run The Circus production
44           Total number of band members, dancers, & performers on tour

500        # of rehearsal hours that each dancer had to go through to prepare for the tour.
15          # of Big Apple Circus Performers on Tour
6            # of countries where the Big Apple Circus performers are from (US, Canada, Moldova, Russia, Ukraine, Czech Rep.)
20          Wardrobe cases for Britney, her band, and dancers
11          Number of hair, make-up and costumers on tour for Britney & performers
360        Total # of tour costumes
9            Number of Britney's costume changes during each show
15-45     # of seconds it takes to make one wardrobe change
100,000+ # of authentic Swarovski crystals individually hand placed on costumes
10          # in million of fans who have seen a Britney concert
8            #1 Worldwide singles
3            Million + "Circus" albums sold worldwide
#1          Grossing tour of 2009 to date
#1          Most searched person
#1          Selling female artist of the past decade