In July 2021, Carey was featured on the track "Somewhat Loved" from Jimmy Jam and Terry Lewis' debut studio album Jam & Lewis: Volume One. On November 5, 2021, Carey released "Fall in Love at Christmas", which features Khalid and Kirk Franklin. The single was performed on her second Christmas special, Mariah's Christmas: The Magic Continues. In March 2022, Carey was featured alongside DJ Khaled on the remix of Latto's single "Big Energy", which interpolates Carey's 1995 single "Fantasy". In April, an online course from MasterClass based on singing, in which Carey served as a vocal coach, was released. On September 16, 2022, an expanded version of Butterfly was released for the 25th anniversary of the album. In November, Carey released a children's picture book titled The Christmas Princess, co-written with Michaela Angela Davis and illustrated by Fuuji Takashi. In December 2022, Carey performed two pairs of shows at Scotiabank Arena in Toronto and Madison Square Garden in New York City.* Carey also served as a co-producer of Some Like It Hot on Broadway theatre, a musical based on the 1959 comedy film Some Like It Hot. It earned her a nomination for the Tony Award for Best Musical.
In July 2021, Carey was featured on the track "Somewhat Loved" from Jimmy Jam and Terry Lewis' debut studio album Jam & Lewis: Volume One. On November 5, 2021, Carey released "Fall in Love at Christmas", which features Khalid and Kirk Franklin. The single was performed on her second Christmas special, Mariah's Christmas: The Magic Continues. In March 2022, Carey was featured alongside DJ Khaled on the remix of Latto's single "Big Energy", which interpolates Carey's 1995 single "Fantasy" In April, an online course from MasterClass based on singing, in which Carey served as a vocal coach, was released. On September 16, 2022, an expanded version of Butterfly was released for the 25th anniversary of the album. In November, Carey released a children's pictur.e book titled The Christmas Princess, co-written with Michaela Angela Davis and illustrated by Fuuji Takashi. In December 2022, Carey performed two pairs of shows at Scotiabank Arena in Toronto and Madison Square Garden in New York City.* Carey also served as a co-producer of Some Like It Hot on Broadway theatre, a musical based on the 1959 comedy film Some Like It Hot. It earned her a nomination for the Tony Award for Best Musical.