Everyone's tweeting pictures about their summer -- whether it's friends on the lake or that unbelievable car thermometer. Usually those random pics only earn a few comments from their Twitter followers, but you can use them to win tickets to one of country's hottest summer shows. The Pepsi Billboard Summer Concert Series hits Nashville on July 30 with performances by Easton Corbin, Gloriana, Randy Houser, Jana Kramer and Jerrod Niemann. Fans can win tickets by tweeting and tagging their pictures as part of Pepsi's LIVE FOR NOW program. It's easy to enter. Just take a photo, share to Twitter or Instagram and use the tag #COUNTRYNOW, and you'll be entered to win a ticket to the big show. Get more details.