To celebrate the release of the soundtrack, ClevverTV teamed up with Walt Disney Records to give away a Fender Squire Stratocaster guitar featuring Phineas and Ferb characters drawn by Dan Povenmire and Jeff "Swampy" Marsh.
The Disney Blog announced the sweepstakes on October 27th, but the (much shorter) announcement was posted on ClevverTV's site and their YouTube channel almost two weeks later. According to the official rules, the sweepstakes runs from October 12th through December 4th, 2009. You will need to read the full rules, but some of the important ones are:
To enter, go to http://www.gotdownloads.com/phineasandferb/.
Notes about the sweepstakes site:
If you win, be sure to tell them you heard about the sweepstakes on the Phineas and Ferb Wiki.