Mark Simpson, 27, is an Ames resident who started performing on Campustown streets 10 months ago. In Ames, college students, bar patrons and even police officers take notice of the frequent number of musicians who appear on the streets during the weekend.

Here Simpson performs “Radioactive,” by Imagine Dragons on Tuesday, April 8. He busks in Campustown near Welch Avenue, Chamberlin Street and Lincoln Way.