fromis_9 have dropped more teaser images for their upcoming debut album 'To. Heart'.

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In line with their school concept, the girls of fromis_9 can be seen getting scientific in the lab, working on their artistic skills, and jamming out on the drums. As previously reported, the 9-member girl group made their pre-debut with "Glass Shoes" after making it to the finals of Mnet's trainee survival show 'Idol School'.

fromis_9's debut mini album 'To. Heart' drops on January 24. Check out their MV teaser if you missed it here!