 # 1 to Infinity is the sixth compilation album by American singer and songwriter Mariah Carey . It was released by Sony Music Entertainment on May 15 , 2015 . It features Carey 's eighteen U.S. number @-@ one singles on the Billboard Hot 100 . A new recording called " Infinity " was released as the only single on April 27 , 2015 . In January 2015 , the singer announced that she had signed a residency deal to perform at The Colosseum at the Caesars Palace hotel in Las Vegas in May and July 2015 , and would perform all of her number @-@ ones . As a result , she decided to re @-@ release her first compilation , # 1 's , from 1998 with an updated list of subsequent chart toppers . Carey promoted the album with her Mariah Carey # 1 's residency and with live performances at the Billboard Music Awards , Jimmy Kimmel Live ! and Live ! with Kelly and Michael . 
