Students love to sing, so what better way to learn our letters and sounds than through music! I created this SMART Notebook activity to use with Dr. Jean's song, Who Let the Letters Out? This song is found on her CD, Kiss Your Brain, and it is definitely one of my class favorites every year. It is sung to the tune of "Who Let the Dogs Out." There is a page for each letter of the alphabet, so the pages are turned as the song is playing. At the end of the song, there is an activity where the students match pictures to their beginning sounds.