ORGANIZATION@1 also released a `` Timeless '' documentary version of her `` Y -LRB- Why ... -RRB- '' music video .

Debut Single : Timeless / Y -LRB- Why ... -RRB- PERSON@1 was discovered by ORGANIZATION@1 . SM Entertainment also released a MISC@1 documentary version of her Y -LRB- Why ... -RRB- PV .
