It’s Your Last Chance to Write a Jingle for Don’t Mess With Texas It's not too late to enter a jingle into the "Lone Star Song Search" and become the new voice of the famous Texas anti-littering campaign, Don't mess with Texas. According to the Texas Department Of Transportation, Don't mess with Texas is looking for a new theme song, and launched a huge contest to find the perfect tune. You still have a little over 24 hours to get in on this contest. If you think you might be able to come up with a winning song, here are the guidelines for entering: