That's not a U.F.O., it's your little one's favorite Monster Jam truck: Alien Invasion! This black tee features the cool alien and fan-favorite monster truck in slime green. Plus, you can personalize this special shirt with a name to precede the phrase, "BELIEVES." This personalized kids' apparel is perfect for any out-of-this-world Monster Jam fan - give it to them for their birthday, the holidays or before their very first arena show.