For some, things got uncomfortable Katy PerryOn American Idol.

On the April 25 episode of the hit talent show, the “I Kissed a Girl” singer had an awkward moment after contestant Noah Thompson performed a John Mayer song. When Thompson guessed it was Perry who chose “Heartbreak Warfare” for him to perform instead of John Denver‘s “Take Me Home,” Perry—who previously dated Mayer—replied, “Noah, I feel like you should maybe Wikipedia me. I picked John Denver.”

After you have been convicted Luke Bryan admitted to choosing the song for Thompson, Perry said, “It’s all a great song—I can’t talk anymore.”

After singing “Hot N Cold”, the 34-year-old singer hid beneath the desk, while others laughed. Finally, he joked about asking “Who is going to pay for an extra hour of therapy?”

Thompson may not have realized that Perry and Mayer had a romantic past.

The “Your Body Is a Wonderland” singer, 44, and Perry began dating in the summer of 2012. They split up several times, before finally ending their relationship in 2015.