B1A4 performed their own cover of "One Ticket" on the Song Dae Kwan special of 'Immortal Song 2'.

On the October 13th episode, the B1A4 members were the sixth performers on the 'Immortal Song' stage, where they stated, "Today is our first appearance. Now that we're standing here, we're reminded of how we came to Seoul to audition with just one ticket. For those of you who enjoy it, you can get up and start dancing."

Though B1A4's rendition of "One Ticket" started out quietly, the performance quickly turned more upbeat with rapping and dancing.

Song Dae Kwan commented, "There was dance as well as ballad in the performance. You made it into a new song. There's nothing to criticize. I'm really happy."

However, the audience favored Jung Dong Hwa's performance, and B1A4 was out of the running for first. Ultimately it was Sweet Sorrow that won first place.

Watch B1A4's performance below!