Songwriter Ryan Tedder told KIIS FM about writing songs with Ariana Grande and Taylor Swift: ‘I was in with Ariana a few days ago. She is one of the fastest singers I’ve EVER heard in my life and is just amazing. We knocked out two songs in a day. I did a little stuff with Taylor, who is probably the fastest songwriter I’ve ever met in my life.
Taylor is genuinely the quickest songwriter. For anyone who doubts it, she writes her own stuff.. Any idea, you’re like, ‘Yeah, I don’t know if I like that lyric,’ she has three options to replace it within 10 seconds. She is like bam bam bam. She’s a bit of a prodigy, a bit of a songwriting prodigy.’