Kelly Clarkson and Carrie Underwood both won American Idol and have both gone on to massive success and become superstars, but they don’t really look alike. Even so, Kelly says now and then people mistake her for Carrie and one time, she just went along with it.

Kelly told Entertainment Tonight, “This girl came up to me and was like, ‘Oh my god, your song ‘So Small’ is one of my favorites’ snd I kept thinking, ‘I don’t have a song ‘So Small.’ And then she said another song and I was like, ‘Oh, you think I’m Carrie Underwood.'”

Clarkson continues, “And I literally look nothing like Carrie Underwood. I was so embarrassed for her that I just…She was like, ‘Can you sign this?’ And I totally signed ‘Carrie Underwood.’ I think that might be illegal!”

Over the summer, actress and Nashville native Reese Witherspoon was also misstaken for Carrie Underwood, writing on Twitter, “To the woman in the parking lot who just asked me if I was Carrie Underwood: You officially made my day!”

Underwood replied to the tweet, writing, “YOUR day?!?!?!?! That lady just made my whole life!”