The 28-year-old singer, who spent quality time with the duo after her break-up with John Mayer in March, confessed her shocking feelings to Stewart during a karaoke party, confessing she''d love to date Rob should they split up again, the Sun reported.

Robert Pattinson
Robert Pattinson. Pic/Santa Banta

According to Star magazine, after hearing Perry’s comments, Stewart looked like she wanted to run away.

The 23-year-old star was then said to have questioned her ‘Twilight’ co-star and boyfriend whether “rumours of them hooking up in the past are true”.

Katy Perry
Katy Perry. Pics/Santa Banta

Kristen Stewart
Kristen Stewart. Pics/Santa Banta