Singer Lee Seung-gi made his comeback on the 18th with the release of his digital single “By Your Side.”

His agency unveiled the title-track teaser a day earlier, featuring Lee speeding through dark alleyways and performing with a live band, hinting at the song’s powerful rock energy.

The new track centers on a full band sound and delivers a message of staying by someone’s side through difficult times.

Lee also released “Goodbye,” a lyrical ballad layered with tender guitar melodies and heartfelt farewell emotions.

Following his previous single “The Repair” in May, Lee participated again in both songwriting and composition, reaffirming his artistic depth.