As singer Ailee has been dominating the 1st place position for 4 days straight with her new song "U&I," many are curious as to who will pull her down.

The first one to start is JYJ's member XIA (Junsu). He released his title song "Incredible" along with all 12 tracks of his 2nd album today, going head-on against Ailee.

"Incredible" is a hip hop dance song, full of energy for the summer season. Junsu had participated in songwriting for this album as he had done for his 1st album.

Second is Kang Seung Yoon, who is releasing his new album as well. He will be pre-releasing his song "It's Raining" tomorrow for his upcoming album that is to be released later this month. As his new song will be his debut song after rising to stardom through Mnet "Super Star K2," expectations and excitement for his debut is very high.

Infinite is also coming back on the same day. Infinite will be coming back as charismatic soldiers this time with their title song "Destiny" tomorrow.

Many are curious as to which of these three will be able to compete with Ailee for the 1st place.

Photo Credit: OSEN