The singer's multi-million-selling album 21 is widely known to be about the breakdown of a previous relationship, but Adele admitted she would not like it if the tables were turned.
Asked how she would feel if a former boyfriend released a song about her, Adele told The Today Show's Matt Lauer: "I'd f**king s**t myself. I'd be mortified.
"But also if they wrote songs about me, they'd be, 'This song's about Adele'. I've never given any names ever, but everyone's going to know this song's about me. No-one actually knows who my songs are about."
The star also revealed that she wishes she had not included some lyrics on 21 as she did not realise just how big the album would become.
"I do wish I'd kept a lot of things to myself, but I never knew the album was going to be so big. I will be more wary when I go into things now," she explained.
"It is really sad but it's also to protect the people I love. I don't see why my career and my lifestyle should affect people who it's not their dream, it's got nothing to do with them.
"In the songs I can still be really really direct but in interviews when I'm explaining my songs I shouldn't be so direct about who they're about."
NBC's interview with Adele, which included clips from her Live at the Royal Albert Hall DVD, claimed a primetime ratings victory for the channel on Sunday evening (June 3), attracting 6.2 million viewers.
Watch the music video for Adele's 'Rolling in the Deep' below: