Gil and Jung Hyung Don have come back together as Ddoongsoo after a hiatus of 2 years.

On the 22nd, Gil wrote, "Lee Seung Gi, Lee Hi, let's go at it... 2012.11.26. 12pm Ddoongsoo comeback" and uploaded a photo hinting at a new song "It's the Best".

The pair are putting out songs from MBC 'Infinity Challenge' Ugly Friend Special. The songs such as "Ugly Friend Song", "Your Face is the Best Song", and "Infinity Challenge Preview Song" have become highly popular, and it has been revealed to be the pair's song.

The pair are wearing shower gowns and shutter shades and emphasize their own comical hip hop style. Gil's representative said, "Every time there is an 'Infinity Challenge' festival, the 'Infinity Challenge' group Ddoongsoo comes together. They're releasing the 'Ugly Friend Festival' theme song of 'It's the Best'. The song is charming and will give hope to the people who are at the bottom 2%."

It is reported that Yoo Jae Suk was the driving force behind the two joining together. The song will be revealed on the 24th through the 'Infinity Challenge' broadcast, and will be fully released through music sites on the 26th at noon KST.