July 4, 2017, her sixth studio album, Black, was released alongside the rustic-themed official music video for the title track. The mature, experimental sound started with Monochrome continues as Lee wrote eight and composed nine of the ten album tracks. 2017–present: Reality show, SSAK3 and Refund Sisters Lee and her husband, Lee Sang-soon, turned their house in Jeju Island into a guest house to film Hyori's Homestay. In season 1, IU joins the show as an employee. In season 2, the employee position was replaced by YoonA, also in this season Park Bo-gum came to worked as a temporary employee. In 2019, Lee reunited with Fin.K.L in a new reality show “Camping Club”. On May 15, 2020, Lee announced that she had signed a contract with ESteem Entertainment. Through MBC's Hangout with Yoo, she, under the stage name Linda G, founded the summer project co-ed trio named SSAK3 with Rain and Yoo Jae-suk. They released a debut single "Beach Again" on July 18, 2020 and officially debuted on July 25 with a debut stage on Music Core. SSAK3 is a special summer project, and they announced that all proceeds from their songs and promotions will be donated to communities in need. After SSAK3 project, Hangout with Yoo programme has a spin-off from Lee naming Uhm Jung-hwa, Jessi and Hwasa as the members she wanted in her dream girl group during the SSAK3 segment. The four women formed another girl group named Refund Sisters (환불원정대) with Yoo Jae-suk as a producer. They released a debut single "Don't Touch Me" on October 10, 2020. On October 13, 2021, it was announced that Lee will be hosting the 2021 Mnet Asian Music Awards on December 11, 2021, making her the first woman to host the show solo. In February 2023, Lee signed with Antenna. Artistry and image After the disbandment of Fin.K.L., Lee's style has been categorized as Urban Pop and dance-pop. With the release of H-Logic, Lee began to experiment with her sound by incorporating hip-hop into her music. Later releases have been influenced by country, blues, disco, folk and rock music. At the beginning of her solo career, Lee would sometimes write or co-write material for her albums alongside other songwriters. Later in her career, she began self-composing and producing much of her own material. Thematically, Lee's songs have ranged from love and heartbreak to empowerment to social commentary with a