The rookies are coming with their debut mini album '++', which stores a total of 6 songs titled "+ +", "Hi High" (title), "favOriTe", "Heat", "Perfect Love", and "Stylish".
On August 17 KST, LOONA unveiled the MV teaser for their debut title track. In the 32-second clip, the girls look up in the sky and get ready to run towards their debut.
The girls also released a second group image teaser:
