The comparison of Fine Line to Rumours is a huge compliment from Nicks, as the 1977 Fleetwood Mac album has been lauded as the band's best, featuring hits such as Dreams and Go Your Own Way.
Rumours was inducted into the Grammy Hall of Fame in 2003. It was named on TIME's All-Time 100 Albums list in 2006 and was chosen for preservation in the Library of Congress in 2018 by the National Recording Registry.
Styles' album was number one on the Billboard album chart at the end of 2019 and kept its spot into 2020, making it the last number one album of the 2010s and the first of the 2020s.
He's expected to tour the album worldwide later in the year and has recently added more tour dates, should the Covid-19 pandemic slow down and the ban on large gatherings lift.
Nicks offered fans some comforting words in her letter, writing: "Dear everyone, I know you are doing everything you can to help the situation we are all in...My advice for all of this free time and terrible news is just dance, this will pass, love will find a way, it always does."
The star shared that she's surrounded by family and a close friend at home, as well as some furry companions.
"I am staying in with my God-daughters and my assistant Karen, and all our dogs, Lily, Luna and Mana, trying to think of creative things to do."
Nicks' last release was in 2017 with Your Hand I Will Never Let It Go.
Her last album was 24 Karat Gold: Songs from the Vault in 2014. The note's sign off "P.S. I'll be in touch" may hint at new music coming soon.
Since her career kicked off both with Fleetwood Mac and as a solo artist in the 1960s, Nicks has had 40 top 50 hits, sold over 140 million records, and along with Fleetwood Mac is one of the best selling acts of all time.
She's the only woman to be inducted twice into the Rock and Roll Hall of Fame, solo in 2019 and in 1998 with Fleetwood Mac.
