"Can we all please crawl inside that piano with you and live in this album.." Blake wrote to her pal Taylor on her Instagram Story (via People).
"Like you, Folklore is full of heart, soul, humor, passion, intelligence, wit, whimsy, reality, imagination, strength, vulnerability, and above all things: Love," the actress wrote.
Blake opened the note with a big "thank you" to the singer. She also thanked Aaron Dessner and Jack Antonoff, who produced "Folklore," Bon Iver, who's featured on the songs "exile" and "peace," and William Bowery, a co-writer on two tracks who fans believe is actually Taylor's boyfriend, Joe Alwyn.
(Over the weekend, Billboard reported that even Aaron Dessner doesn't really know who William Bowery is. "I think he's a friend," the producer told Pitchfork.)
While Blake didn't explicitly mention the song "betty," fans have noticed the track's lyrics include the names Betty, Inez and James. Given that Blake's 3 and 5-year-old daughters are Inez and James, it's not a leap to suggest her 9-month-old daughter is Betty.
Blake and Ryan have kept their new daughter's name under wraps since she was born last fall. They kept the names of Inez and James private for as long as they could, as well.
A source also reportedly told People "betty" was named "in part" after her friends' baby.
Taylor released "Folklore" at midnight on Friday after announcing she had a brand new studio album ready for the masses on Thursday.
The album sold 1.3 million copies in just 24 hours, according to Variety.