Lee Woo (이우; formerly known as Lee Geon (이건)) is a South Korean singer and actor under KH Company. He is a former member of boy group MADTOWN.
He made his solo debut on October 27, 2018 with the single "If I Know".
In 2017, he participated on the idol rebooting project show The Unit. He was eliminated in episode 15 and finished in 18th place.
On October 4, Soribada announce that they had signed an exclusive contract with him as a solo artist. He released his debut solo single "I Know" on October 27 under his new stage name Lee Woo.