Particular majors may require you to complete a certain number of internships before graduation. I completed an internship during undergrad and was able to count that position as a elective, so it helped complete credits my major.
Even if it is not required, getting an internship as soon as possible will definitely help with your job search when you graduate. Not only will it give you experience to refer to during interviews, but it will give you connections in the industry and also let you understand what it would be like to have this position full time. I think internships are a great way for you see what it would be like to work in a particular industry and company. Good luck!