Forever No. 1 is a Billboard series that pays special tribute to the recently deceased artists who achieved the highest honor our charts have to offer - a Billboard Hot 100 No. 1 single - by taking an extended look back at the chart-topping songs that made them part of this exclusive club.

She had battled ALS, commonly known as Lou Gehrig’s disease, since 2022. From her 1969 debut album, "First Take," through a 2012 collection of Beatles covers, "Let it Be: Roberta," Flack,