Which 2015 compilation album included Mariah Carey's new recording "Infinity"?

The 2015 compilation album that included Mariah Carey's new recording “Infinity” was #1 to Infinity.

The album, stylized as #1 to Infinity, was released by Epic Records in 2015. It collected all of Carey's singles that had reached number one on the US Billboard Hot 100 up to that point, making it a career-spanning overview of her chart history. Its sequence includes signature hits such as “Vision of Love,” “One Sweet Day,” “We Belong Together,” and “Touch My Body.”

“Infinity” was the album's newly recorded song and served as its lead single. Carey co-wrote it with Eric Hudson, Priscilla Renea, Taylor Parks, and ILLA. The song was notable as the only new track created specifically for the compilation, rather than a previously released hit being gathered into the collection.

The title is easy to confuse with #1's, Carey's 1998 number-one compilation, or with later collections such as The Rarities. #1 to Infinity is specifically the 2015 package built around Carey's US number-one singles and the new song “Infinity.”