American Express is running a small promotion where you can get five free songs on iTunes if you have an American Express consumer or business card. Pay for the songs with that card and you’ll get refunded the cost for five songs. You can learn more here. Promotion is running from February 10th, 2011 to March 15th, 2011.
Some fun terms & conditions:
To be eligible to receive the statement credit, you must register any valid U.S. American Express® Consumer Card or Business Card from American Express OPEN at amexnetwork.com/iTunes and use that Card to make a purchase on iTunes® between 2/10/11 and 3/15/11. A statement credit equivalent to the price of 5 song downloads on iTunes plus sales tax will be issued generally within 5 business days after your qualifying purchase, but may take up to 2 billing periods to post to your account. Limit one statement credit per registered Card regardless of the number of transactions made. If your registered Card is replaced, you must re-enroll the replacement Card prior to making the iTunes purchase to get the statement credit. Additional terms apply; see Registration Terms and Conditions for details.