Summer has hit us hard in the last couple days with the warm weather. But the true testament to summer really being here is Summerfest! The world's largest music festival is back again with some killer artists in the line-up. There is so much music during this event that it's hard to keep track but we put together a list of 10 shows that you should probably try to head and check out. Some are new to the Summerfest event and others are seasoned veterans. Let us know who you're planning on checking out this year!