Cha Eun-woo and Lee Seung-gi have announced a collaboration that promises to be unforgettable.

On November 26, Fantagio revealed, "Cha Eun-woo will feature on 'Because You're My Woman,' a track from Lee Seung-gi's 20th-anniversary commemorative album WITH."

Because You're My Woman was originally released in 2004 as Lee Seung-gi's debut single, recognized as a national confession song. Now, 20 years later, the track is being reimagined with Cha Eun-woo and Lee Seung-gi.

A representative stated, "The song has been reborn with the vocal harmony of these two artists, delivering a fresh sense of excitement to listeners through their musical synergy."

Cha Eun-woo's distinctive vocal tone is a highlight of the collaboration. His agency noted, "With his sweet voice, delicate emotion, and unique interpretation, Cha Eun-woo will bring a new color to the song."

Previously, Cha Eun-woo and Lee Seung-gi showcased their chemistry on the variety show Master in the House, leaving fans eagerly anticipating their formal musical collaboration.

Cha Eun-woo released his first solo album, ENTITY, in February, followed by a successful fan-con tour (Mystery Elevator) spanning 11 cities worldwide.

He also excelled as an actor, starring in dramas like A Good Day to Be a Dog and Wonderful World, earning praise for his captivating performances.

The multi-talented star is set to appear in the upcoming tvN variety show Finnish Boarding House, premiering on December 6, where his stunning visuals and wit are expected to shine.

Cha Eun-woo has also confirmed his role in the new Netflix series The Wonderfuls, playing a mysterious character named Lee Woon-jung, a special recruit civil servant.

The duet Because You're My Woman with Lee Seung-gi will be released on December 4 at 6 PM KST across major music platforms.