Brad Paisley has teamed up with Dollar General and PepsiCo for the "Tune In to Giving" campaign, which benefits the Dollar General Literacy Campaign.

Brad's image will be used on in-store displays and marketing materials.

Beginning now and ending Aug. 19, when Dollar General shoppers purchase a two-liter Pepsi product along with at least a 10-ounce (or larger) bag of Lay's potato chips, they can enter the code that appears on their receipt at dollargeneral.com and $1 will be donated to the Dollar General Literacy Foundation.

Fans who enter their receipt code online will receive a free music download and be entered for a chance to win Dollar General gift cards, Brad memorabilia and concert tickets to Brad's Virtual Reality World Tour, which runs through mid-October.