"I find it awkward singing with us all four again," Jowon confessed in the group's guesting in IU's Palette. The group has made its comeback a few days ago after a seven-year hiatus as a group. "It's been a long time and I don't know how to act."

In IU's Palette 10th episode the boys claimed that they regret not enlisting in the army together which is actually one of the reasons why it took them time to make a comeback. The comeback, agreed by all four was planned late last year. Although the talks of the comeback also took a while as they are now in different agencies, putting 2AM as their first priority made it possible.

Im Seul-Ong said that that the making of the album itself was smooth. "Wasn't there even one problem while making it?" IU jokingly asked, making the shoot more fun. "Are you really going to go on being like this" he answered IU with a chuckle.

IU and 2AM debuted at the same and there was no awkwardness in the air as both parties reminisced about how they met for the first time back in the days. The guys also shared how shy and adorable IU was on that day they first met during rehearsals.

The group sang two songs of their album live for the first time. And as expected of 2AM their heartwarming and voices full of emotion do not disappoint. The songs were well delivered.

At the end of the performance, the group asked IU which song was better and the singer choose 'Should've Known' a song composed by Hybe Ceo Bang Si Hyuk. When she said that the group hinted that maybe JYP who wrote the other song would be hurt.

'Did your relationship end after Dream High'? Lee Changmin teased.

IU redeemed herself saying, Bang Si Hyuk's live version is good while JYP's 'No Good In Goodbye' sounded better in the recorded version.

Watch full episode 10 of IU's Palette below.