She received some harsh feedback early on in the process.
One of the first songs Adele wrote for 25 was “Remedy,” which she worked on with Ryan Tedder (who previously produced her single “Rumour Has It”). The experience inspired her to start “knocking out some sh-t songs” for the album—until her manager told her they weren’t good enough and returning collaborator Rick Rubin said he didn’t believe what she was singing. “That’s my worst fear: people not believing me,” Adele said. “I want back to the drawing board.”
Fastest to 100M, 100,079,462 in 114.5 hours. It took Miley 6 days (144 hours)