Step! (ステップ!) is the second image song of THE IDOLM@STER Cinderella Girls' Honda Mio. It was originally released in the album "THE IDOLM@STER CINDERELLA GIRLS STARLIGHT MASTER 02 Tulip" by Columbia Music Entertaiment on May 18, 2016.
In 2019, artist hemoglosso made a music video for the song which became widely popular (post #3838401). The video would later spawn various memes and parodies.