On May 4 that year, Carey claimed her 11th leader and the third from her album Daydream . Mariah Carey posed in the Netherlands in 1996. Michel Linssen/Redferns H ow did Mariah Carey follow up the then-longest-leading No. 1 in the Billboard Hot 100 ’s history, “One Sweet Day,” with Boyz II Men? Only with another No. 1. On the Hot 100 dated May 4, 1996 , Carey’s “Always Be My Baby” ascended from No. 2 to No. 1, bringing her back to the summit after “Day” had reigned for a then-unprecedented 16 weeks beginning in December 1995. To date, Carey again boasts the longest command, thanks to 22 weeks for “All I Want for Christmas Is You.” Related “Day” followed the first single from Carey’s 1995 album Daydream , “Fantasy,” which ruled the Hot 100 for eight weeks starting that September. As “Baby” added a second total week on top, Carey ran up a run of 26 weeks at No. 1 with songs from Daydream , still the record for an album by a woman.…