I saw this post that said you can get free tickets to Ashlee Simpson's Denver, CO concert on Tuesday June 13:
Tickemaster is giving away tickets to the Ashlee Simpson concert in Denver - apparently having a hard time selling them, I imagine, they decided to give them away.
So after processing fees, if you choose ticketfast delivery, you can get 4 tickets for $4 when it's all said and done.
Follow this link, scroll down to where it says "Complimentary Ticket Offer", and select the number of tickets you want (up to 4). In the "Special Offer Code or Password" box, enter "SIMPSON", then click "Look For Tickets". Even though the tickets are free, you might have to have a credit card for the Ticketmaster handling fees.