Three's a crowd
LEE HI, 17
This fresh-faced powerhouse scored her showbiz break after emerging runner-up in reality TV singing competition K-pop Star in December 2011.
Two songs, It's Over and Rose, from her two-part debut album First Love (2013) were mega successes, peaking at no. 1 on all the South Korean pop charts.
Instead of receiving brickbats and backlash, Korean-American pop star Ailee saw her popularity surge after nude photos of her were leaked online in November last year.
The Denver-born R&B diva has the ability to belt out big numbers with conviction, as exemplified in her latest female-empowering hit Singing Got Better.
While IU continues her swift ascent to the top of the K-pop hierarchy, M checks out her closest rivals on the scene...
While she is unable to match up to her peers vocally, Canadian-Korean singer G.NA beats them all in the physical assets department - she boasts a D-cup chest.
The bosomy star, whose labelmates include boy bands Beast and BTOB, is known for her bouncy, summery songs like Pretty Lingerie, Black & White and Oops!.